# Fastmail

Fastmail declares [35 subprocessors](https://thirdpartyindex.com/vendors/fastmail#subprocessors), plus 1 of its own affiliates, in [its subprocessor list](https://www.fastmail.com/policies/dpa/annex3/), which we last checked on 2026-11-11 ([evidence](https://thirdpartyindex.com/evidence/1779)). They include [Microsoft](https://thirdpartyindex.com/vendors/microsoft), [Stripe](https://thirdpartyindex.com/vendors/stripe) and [Anthropic](https://thirdpartyindex.com/vendors/anthropic). No published changes since we first read it on 2026-09-21. [6 tracked vendors](https://thirdpartyindex.com/vendors/fastmail#used-by) name Fastmail as a subprocessor, including [Fathom Analytics](https://thirdpartyindex.com/vendors/fathom-analytics), [Sendmarc](https://thirdpartyindex.com/vendors/sendmarc) and [Hund](https://thirdpartyindex.com/vendors/hund).

Fastmail (fastmail.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/fastmail
- Documents last verified: 2026-11-11
- Transparency rating: 79/100 (how much it publishes, not how secure it is): Subprocessor list 30/30; Processing locations 0/8 (partial); Purposes 7/7; Data processing addendum 12/12; Trust center 0/8 (not found); Privacy policy 6/6; security.txt 6/6; Security page 5/5; Status page 5/5; Vulnerability disclosure 0/5 (not found); Pages still reachable 8/8
- Supply chain: relies on 29 tracked vendors directly, 223 within two hops, 637 within three; 6 tracked vendors rely on it directly, 15 within two hops, 45 within three
- Cite as: Fastmail, Third Party Index, https://thirdpartyindex.com/vendors/fastmail (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Subprocessor list | https://www.fastmail.com/policies/dpa/annex3/ | 2026-11-11 | 2026-09-21 |
| Data processing addendum | https://www.fastmail.com/policies/dpa/ | 2026-11-11 | 2026-09-21 |
| Privacy policy | https://www.fastmail.com/features/privacy/ | 2026-11-11 | 2026-09-21 |
| Terms | https://www.fastmail.com/policies/terms-of-service/ | 2026-11-11 | 2026-09-21 |
| Security page | https://www.fastmail.com/features/security/ | 2026-11-11 | 2026-09-21 |
| security.txt | https://www.fastmail.com/.well-known/security.txt | 2026-11-11 | 2026-09-21 |
| Status page | https://fastmailstatus.com/ | 2026-11-11 | 2026-11-05 |

## Subprocessors (35)

As its own list states them.

| Subprocessor | Purpose | Location | Listed since |
|---|---|---|---|
| [Abusix](https://thirdpartyindex.com/vendors/abusix.md) | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [Anthropic PBC](https://thirdpartyindex.com/vendors/anthropic.md) (AI model provider: Anthropic) | Business operations and support services | — | 2026-09-21 |
| [Avalara AvaTax](https://thirdpartyindex.com/vendors/avalara.md) | Business operations | — | 2026-09-21 |
| CentralNic Reseller (RRPproxy) | Domain registration and management | — | 2026-09-21 |
| [Cloudflare](https://thirdpartyindex.com/vendors/cloudflare.md) | Content distribution, security, abuse prevention and DNS services | — | 2026-09-21 |
| [DeepL](https://thirdpartyindex.com/vendors/deepl.md) | Translation services, primarily for support tickets and non-English spam and phishing content review | — | 2026-09-21 |
| DNSWL | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [DropBox](https://thirdpartyindex.com/vendors/dropbox.md) | Support services and Business operations | — | 2026-09-21 |
| [eFax (j2connect)](https://thirdpartyindex.com/vendors/efax.md) | Support services and Business operations | — | 2026-09-21 |
| eHawk | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [GitHub](https://thirdpartyindex.com/vendors/github.md) | Hosting of code as an open source tool | — | 2026-09-21 |
| [Grammarly](https://thirdpartyindex.com/vendors/grammarly.md) | Writing assistance, primarily for support tickets | — | 2026-09-21 |
| [hCaptcha](https://thirdpartyindex.com/vendors/hcaptcha.md) | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [Linear](https://thirdpartyindex.com/vendors/linear.md) | Project management and Business operations | — | 2026-09-21 |
| [Mailchimp](https://thirdpartyindex.com/vendors/mailchimp.md) | Email marketing and automation | — | 2026-09-21 |
| [Microsoft](https://thirdpartyindex.com/vendors/microsoft.md) | Cloud-based and on-premises office productivity tools | — | 2026-09-21 |
| [Notion](https://thirdpartyindex.com/vendors/notion-com.md) | Support services and Business operations | — | 2026-09-21 |
| [Paddle](https://thirdpartyindex.com/vendors/paddle.md) | Payment processing | — | 2026-09-21 |
| [PagerDuty](https://thirdpartyindex.com/vendors/pagerduty.md) | Support services and Incident management | — | 2026-09-21 |
| [Partnerstack](https://thirdpartyindex.com/vendors/partnerstack.md) | Partner and referral management | — | 2026-09-21 |
| [Paypal](https://thirdpartyindex.com/vendors/paypal-us.md) | Payment processing | — | 2026-09-21 |
| [Pin](https://thirdpartyindex.com/vendors/pin.md) | Payment processing | — | 2026-09-21 |
| [Posthog](https://thirdpartyindex.com/vendors/posthog.md) | Analytics in order to improve user experience. | — | 2026-09-21 |
| Pythia | Support services | — | 2026-09-21 |
| Redsift | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [Sentry](https://thirdpartyindex.com/vendors/sentry.md) | Application logging | — | 2026-09-21 |
| [Slack](https://thirdpartyindex.com/vendors/slack.md) | Support services and Business operations | — | 2026-09-21 |
| Spamhaus | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [Stripe](https://thirdpartyindex.com/vendors/stripe.md) | Payment processing | — | 2026-09-21 |
| [SurveyMonkey](https://thirdpartyindex.com/vendors/surveymonkey.md) | Support services, Customer feedback and Business operations | — | 2026-09-21 |
| [Twilio](https://thirdpartyindex.com/vendors/twilio.md) | Multi-factor authentication | — | 2026-09-21 |
| [Vade (Hornet Security)](https://thirdpartyindex.com/vendors/vade.md) | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [Validity](https://thirdpartyindex.com/vendors/validity.md) | Antispam/antifraud/antiabuse management | — | 2026-09-21 |
| [Zendesk](https://thirdpartyindex.com/vendors/zendesk.md) | Support services | — | 2026-09-21 |
| [Zoom](https://thirdpartyindex.com/vendors/zoom.md) | Video conferencing | — | 2026-09-21 |

Read from ([evidence](https://thirdpartyindex.com/evidence/1779)). CSV: https://thirdpartyindex.com/vendors/fastmail/subprocessors.csv

AI model providers (or a cloud provider's AI model service) among these entries: 1. All vendors that list one: https://thirdpartyindex.com/ai

### Its own affiliates (1)

- Fastmail US LLC

## Web Technologies

Fastmail's homepage made 41 requests to 1 domain. Loaded on 2026-11-04 by a browser that accepted nothing; other visits may load more or less. What a page loads is not a list of who receives customer data.

### First party (1)

- Fastmail: 41 requests to fastmail.com; Cloudflare, HSTS, HTTP/3, Open Graph, PWA

## Subprocessor of (6)

Tracked vendors whose own subprocessor lists name it, and what they say they use it for.

- [Fathom Analytics](https://thirdpartyindex.com/vendors/fathom-analytics.md): Email
- [Hund](https://thirdpartyindex.com/vendors/hund.md): Business email hosting
- [Minter.io](https://thirdpartyindex.com/vendors/minter-io.md): Email Services
- [Postcall](https://thirdpartyindex.com/vendors/postcall.md)
- [Sendmarc](https://thirdpartyindex.com/vendors/sendmarc.md): Cloud provider
- [Shiftkeeper](https://thirdpartyindex.com/vendors/shiftkeeper.md): Business email and Customer-requested support communications

## Service status

Incidents it reported on its own status page.

- Last 90 days: 7 reported incidents (0 major or critical, 0 minor, 7 with no impact stated)
- Typical time to resolve: 5 h 23 min
- Status page last read: 2026-11-12
- 2026-10-29: Support emails not generating tickets (no impact stated)
- 2026-10-14: Support web form not accessible (no impact stated)
- 2026-10-07: Interrupted access to Fastmail services (no impact stated)
- 2026-10-05: Support emails not generating tickets (no impact stated)
- 2026-09-23: Replies sent using masked email addresses are bouncing (no impact stated)
- 2026-09-04: Interrupted access to Fastmail services (no impact stated)
- 2026-08-25: Interrupted access to Fastmail services (no impact stated)
- 2026-05-29: Interrupted access to Fastmail services (no impact stated)

## Incidents reported by Fastmail's subprocessors

Incidents reported in the last 30 days on their own status pages by 13 vendors Fastmail lists as subprocessors. A subprocessor list names a company, not the service an incident touched.

- 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Failures from Twilio to GCI United States (minor)
- 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio 10DLC to AT&T United States (minor)
- 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio to Orange Sierra Leone (minor)
- 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures From Long Code Numbers to AT&T in the US (minor)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to MTS Kazakhstan (minor)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Phone Numbers to Tcell Tajikistan (minor)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States (minor)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Phone Numbers to K-Cell Kazakhstan (minor)
- 2026-11-11: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Impact across multiple GitHub products including Actions, Pages, and Copilot products. (critical)
- 2026-11-11: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Webhooks (minor)
- 2026-11-11: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported US issues feed throwing intermittent errors (minor)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures in JP1 (minor)
- 2026-11-11: [SurveyMonkey](https://thirdpartyindex.com/vendors/surveymonkey#status), which Fastmail lists as a subprocessor, reported PROD-TEST - THIS IS A TEST - PLEASE IGNORE, (no impact stated)
- 2026-11-11: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Fastmail lists as a subprocessor, reported Slack integration degraded due to Slack outage (minor)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio to Turkcell Turkey (minor)
- 2026-11-11: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Account emails not being delivered (major)
- 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Retroactive Incident Impacting Twilio Usage APIs (no impact stated)
- 2026-11-10: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors on Fable 52 and Mythos 52 (no impact stated)
- 2026-11-10: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Issue resolved (minor)
- 2026-11-10: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported EU region replay ingestion latency (minor)
- 2026-11-10: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Conference Room Connector Services Endpoints in the AMS region. (minor)
- 2026-11-10: [SurveyMonkey](https://thirdpartyindex.com/vendors/surveymonkey#status), which Fastmail lists as a subprocessor, reported TEST INCIDENT #2 (major)
- 2026-11-10: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Some Notion Agent sessions may hang or stop updating (major)
- 2026-11-10: [SurveyMonkey](https://thirdpartyindex.com/vendors/surveymonkey#status), which Fastmail lists as a subprocessor, reported TEST INCIDENT #1 (no impact stated)
- 2026-11-10: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela (minor)
- 2026-11-10: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Git Operations and Pull Requests (critical)
- 2026-11-10: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Gateway API (Lookup API) Failure Increase on Verizon in United States (minor)
- 2026-11-10: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting a subset of users with ZVA and ZoomMate (no impact stated)
- 2026-11-09: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot (major)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported WhatsApp Business API Message Send Failures (minor)
- 2026-11-09: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions and Checks API (critical)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Chile (minor)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Audio Quality Degradation, Silent and One-Way Audio between Twilio and Multiple Networks in United Kingdom (minor)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Italy (minor)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Spusu United Kingdom (minor)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Bouygues Telecom France (minor)
- 2026-11-09: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Webhooks and Actions (major)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Network Subscribers in Germany to a Subset of Twilio Long Codes (minor)
- 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio to ETL Laos (minor)
- 2026-11-09: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Increased timeouts due to surge in anonymous users (minor)
- 2026-11-09: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Inbound SMS Service in the AU region (minor)
- 2026-11-08: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio to MTN Nigeria (minor)
- 2026-11-08: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EnStream in Canada (minor)
- 2026-11-08: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Increase in timeouts for some unauthenticated users (minor)
- 2026-11-08: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Degraded performance for Claude Fable 5.1 (minor)
- 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Globe Philippines (minor)
- 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Long Codes and Short Codes to Multiple Networks in United States (minor)
- 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Multiple Networks in India (minor)
- 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Multiple Networks in New Zealand (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Networks in Chile (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Claro Dominican Republic (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported TwiML ConversationRelay Documents Page Error (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Chile (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Audio Quality Degradation from a Subset of Twilio Mobile Numbers to Claro Colombia (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Notification Logs Unavailable in Console (minor)
- 2026-11-06: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Mail, Calendar and Scheduler. (minor)
- 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays Between Twilio and T-Mobile in Czech Republic (minor)
- 2026-11-05: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Degraded performance for multiple GitHub services (minor)
- 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Silent and One-Way Audio between a Subset of Twilio Phone Numbers and Multiple Networks in Colombia (minor)
- 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Puerto Rico (minor)
- 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio Phone Numbers to Lycamobile France (minor)
- 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures From a Subset of Twilio Mobile Numbers to Argentina (minor)
- 2026-11-05: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions (minor)
- 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Post Dial Delay from a Subset of Twilio Canada Phone Numbers to Rogers Wireless and Fido Canada (minor)
- 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Search Delays on Enterprise Knowledge (minor)
- 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Delayed Email Validation History (minor)
- 2026-11-04: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions (major)
- 2026-11-04: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Ingestion delays across all data (minor)
- 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Claro Brazil (minor)
- 2026-11-04: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions and Pages (major)
- 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Algar Telecom Brazil (minor)
- 2026-11-04: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Pull Requests, Git Operations and Issues (major)
- 2026-11-04: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Increased task-related errors for Copilot Mission Control (minor)
- 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Failures from a Subset of Twilio Long Codes to GCI United States (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States (minor)
- 2026-11-03: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Git Operations (minor)
- 2026-11-03: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Outbound MMS Services in the US region (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (minor)
- 2026-11-03: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Delays in spans and transactions processing (major)
- 2026-11-03: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Sentry.io dashboard and API is down (critical)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays and Failures from a Subset of Twilio Short Codes to T-Mobile and Verizon United States (minor)
- 2026-11-03: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with API, Git, and Copilot requests (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Brisanet Brazil (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks United States (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Entel Bolivia (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Lycamobile United Kingdom (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Audio Quality Degradation from a Subset of Twilio Phone Numbers to Multiple Networks in United States (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported RateQueue Host Down Did Not Recover (minor)
- 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Media Streams Audio Delays (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Claro Puerto Rico (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Puerto Rico (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call One-Way Audio from Brazil to a Subset of Twilio Numbers (no impact stated)
- 2026-11-02: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Elevated errors on GPT-5.4 Nano (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Some Customers May Have Incorrect Balances Reflected on Their Account (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio Alphanumeric Sender Type to T-Mobile Austria (minor)
- 2026-11-02: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Sentry dashboard is down (critical)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Long Codes to T-Mobile and O2 Czech Republic (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects on XL Axiata in Indonesia (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures From a Subset of Twilio Philippines Phone Numbers to Multiple Networks in Philippines (minor)
- 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Google Voice United States (minor)
- 2026-11-01: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio to KDDI Japan (minor)
- 2026-11-01: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Instant Payouts failures (no impact stated)
- 2026-10-30: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Dependabot (minor)
- 2026-10-30: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions, Pages, and Webhooks (major)
- 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) High Latency on KPN in Netherlands (minor)
- 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects on Smart in Philippines (minor)
- 2026-10-30: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Fastmail lists as a subprocessor, reported Project pages failing to load (minor)
- 2026-10-30: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Disruption with GitHub services (critical)
- 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Automated Alert: Minimal Customer Impact (no impact stated)
- 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS and MMS Delivery Delays from Twilio to Altice United States (minor)
- 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Multiple Networks in Multiple Countries Across Africa and Asia (minor)
- 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Phone Numbers to Vivo Brazil (minor)
- 2026-10-29: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Disruption with Copilot Cloud services (minor)
- 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Gateway API (Lookup API) Failure Increase on Verizon in United States (minor)
- 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Flex Agent Copilot Note Generation Issues (minor)
- 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to T-Mobile United States (minor)
- 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile United States (minor)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Link Shortening Redirect Errors on Branded Domains (minor)
- 2026-10-28: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Fastmail lists as a subprocessor, reported Some Slack integrations have been unexpectedly archived (no impact stated)
- 2026-10-28: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Issuing errors from 17:13 - 20:41 UTC (minor)
- 2026-10-28: [SurveyMonkey](https://thirdpartyindex.com/vendors/surveymonkey#status), which Fastmail lists as a subprocessor, reported Errors occurring across the site (critical)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Long Codes to Orange Belgium (minor)
- 2026-10-28: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors affecting the Google Calendar connector (minor)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EE in United Kingdom (minor)
- 2026-10-28: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting the Evaluations Acknowledge Button in Zoom Quality Management in the US Region (minor)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Possible 503 Errors for Messaging Traffic in the Australia Region (minor)
- 2026-10-28: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Disruption with some Copilot services (critical)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase on Indosat in Indonesia (minor)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to MTC Namibia (minor)
- 2026-10-28: [Vade](https://thirdpartyindex.com/vendors/vade#status), which Fastmail lists as a subprocessor, reported Vade for GWS - Incident - October 14th & 26th (no impact stated)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Twilio Console Errors (no impact stated)
- 2026-10-28: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors affecting the Gmail connector (minor)
- 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Elevated 500 Errors Affecting Programmable Voice API (no impact stated)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Surf Telecom Brazil (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in Portugal (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures From a Subset of Twilio Phone Numbers to Argentina (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Elevated 500 Errors Affecting Programmable Messaging API (no impact stated)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to C-Spire United States (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Automated Alert: Minimal Customer Impact (no impact stated)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from Twilio Mobile Numbers to Israel (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Gateway API (Lookup API) Failure Increase on Three in United Kingdom (minor)
- 2026-10-27: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Sonnet 5.5 (major)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to AT&T United States (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Turkcell Turkey (minor)
- 2026-10-27: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Sonnet 5.5 (major)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Germany (minor)
- 2026-10-27: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Fastmail lists as a subprocessor, reported Problems loading application (major)
- 2026-10-27: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Elevated 404s for GitHub App s2s tokens in git/API (no impact stated)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United States (minor)
- 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in South Africa (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures From a Subset of Twilio Phone Numbers to Multiple Networks in Brazil (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays and Failures from a Subset of Twilio Long Codes to Cellcom United States (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Docomo Pacific United States (minor)
- 2026-10-26: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions, Issues, API Requests and Pull Requests (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported WhatsApp Sandbox Sending Configuration Issues (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Mauritel Mauritania (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from Twilio Phone Numbers to Digi Mobil Romania (minor)
- 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Cellcom Israel (minor)
- 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Telcel Mexico (minor)
- 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Claro Brazil and Puerto Rico (minor)
- 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Telia Sweden (minor)
- 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Airtel Nigeria (minor)
- 2026-10-25: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Fable 5.1 (major)
- 2026-10-25: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Sonnet 5.5 and other models (major)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Azure Marketplace SendGrid Customers Experiencing Account Management Issues (minor)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) Failure Increase in Netherlands (minor)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to C-Spire United States (minor)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects on Vodafone in United Kingdom (minor)
- 2026-10-24: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Blik errors (no impact stated)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures and Post Dial Delay From a Subset of Twilio Phone Numbers to United States (minor)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to WOM Colombia (minor)
- 2026-10-24: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Fable 5 and Claude Fable 5.1 (major)
- 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Claro Costa Rica (minor)
- 2026-10-24: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Opus 5.5 (major)
- 2026-10-23: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Grok 4.6 and Grok 4.7 Service Issues (minor)
- 2026-10-23: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5 (critical)
- 2026-10-23: [PagerDuty](https://thirdpartyindex.com/vendors/pagerduty#status), which Fastmail lists as a subprocessor, reported Issue Resolved - Delays Across the PagerDuty Platform (major)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from Network Subscribers to Twilio Costa Rica Landline Numbers (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio to Multiple Networks in South Africa (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Phone Numbers to Telefonica Nicaragua (minor)
- 2026-10-23: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Multiple Zoom Services (minor)
- 2026-10-23: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Disruption with Dependabot Alerts (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Post Dial Delay from Twilio Phone Numbers to Chile (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Appalachian Wireless United States (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Liberty Mobile Puerto Rico (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Multiple Networks in United States and Canada (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Telecall Brazil (minor)
- 2026-10-23: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Delayed Actions status check results (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Claro Colombia (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Surf Telecom Brazil (minor)
- 2026-10-23: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Users unable to access Notion (critical)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays between a Subset of Twilio Phone Numbers and Multiple Networks in Brazil (minor)
- 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Viaero United States (minor)
- 2026-10-23: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported PHP2Shell (CVE-2026-109618, CVE-2026-109619) (no impact stated)
- 2026-10-22: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Bancontact errors (no impact stated)
- 2026-10-22: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Meetings Services in the US. (minor)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Issue with 500 Errors on Porting Request Submissions (minor)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Issue with Realtime Transcriptions and Deepgram (no impact stated)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Intelligent Alerts Delivery Issues (minor)
- 2026-10-22: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Project updates delayed (minor)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Hosted Number Verification Calls not Reaching Customers (minor)
- 2026-10-22: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Bancontact errors (no impact stated)
- 2026-10-22: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Incident with Actions (minor)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Malitel Mali (minor)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported RCS Inbound Events Delayed (minor)
- 2026-10-22: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Elevated errors affecting Connectors (minor)
- 2026-10-22: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Notion MCP query\_data\_source tool is temporarily unavailable in Claude clients (major)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Billing Delays (no impact stated)
- 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to MTN Nigeria (minor)
- 2026-10-21: [Paddle](https://thirdpartyindex.com/vendors/paddle#status), which Fastmail lists as a subprocessor, reported Issue affecting metrics and reporting in the seller dashboard (minor)
- 2026-10-21: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Fastmail lists as a subprocessor, reported Degraded performance for Claude Fable 5 (minor)
- 2026-10-21: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Increased latency processing integration webhooks (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) Failure Increase in Netherlands (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Cellularone NE Arizona United States (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender Type to Jazz Pakistan (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio Short Codes to Multiple Networks in India (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from United Kingdom to a Subset of Twilio Long Codes (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Customer's Unable to Create New Requests for Hosting and Porting (minor)
- 2026-10-21: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Delays for Pull Requests and Webhook deliveries (critical)
- 2026-10-21: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Learning Webpage (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to Orange France (minor)
- 2026-10-21: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Sentry.io not loading in US region (critical)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Post Dial Delay From a Subset of Twilio Phone Numbers to Israel (minor)
- 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from Twilio to T-Mobile Czech Republic (minor)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender IDs to United Arab Emirates (minor)
- 2026-10-20: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Security update: Preventative certificate security measures (no impact stated)
- 2026-10-20: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Unable to install connections created by other workspace members (major)
- 2026-10-20: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Sentry.io not loading (major)
- 2026-10-20: [Grammarly](https://thirdpartyindex.com/vendors/grammarly#status), which Fastmail lists as a subprocessor, reported Issues with Superhuman Go not loading or showing error messages (major)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Telnyx United States (minor)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Issue with Flex Agent Copilot Auto Wrap-up Notes (minor)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Phone Numbers to Telstra Australia (minor)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported WhatsApp Embedded Signup Configuration Failures (minor)
- 2026-10-20: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Spike in cancellations and expired errors with PayByBank payments (no impact stated)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from Twilio Phone Numbers to Digi.Mobil Romania (minor)
- 2026-10-20: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Revolut Pay errors (no impact stated)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase on AT&T in United States (minor)
- 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from Network Subscribers to a Subset of Twilio Thailand Phone Numbers (minor)
- 2026-10-19: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Meeting Summaries Via Email. (minor)
- 2026-10-19: [PagerDuty](https://thirdpartyindex.com/vendors/pagerduty#status), which Fastmail lists as a subprocessor, reported Issue Resolved - Delays Across the PagerDuty Platform (major)
- 2026-10-19: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Sentry is down (critical)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to AT&T United States (minor)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Telus Canada (minor)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported RCS Delivery Receipt Delays for AT&T (minor)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in Italy (minor)
- 2026-10-19: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported Degraded availability for GitHub Actions, GitHub Pages and Webhooks (critical)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Portugal (minor)
- 2026-10-19: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Website in UK region (minor)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures and Post Dial Delay from a Subset of Twilio Mobile Numbers to Brazil (minor)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from a Subset of Callers to Twilio Denmark Phone Numbers (minor)
- 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Surf Telecom Brazil (minor)
- 2026-10-19: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting ZP SMS Australia Mobile Numbers (no impact stated)
- 2026-10-18: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Brisanet Brazil (minor)
- 2026-10-18: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Some Notion Agent requests may stop before completion (minor)
- 2026-10-17: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio Alphanumeric Sender Type to Multiple Networks in Turkey (minor)
- 2026-10-17: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported 5300 Errors on Singapore Client Edge (minor)
- 2026-10-17: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Chat Compose and SMS Summarisation with AI Companion (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported On Call Engineers are Investigating Errors with the Virtual Phone in Legacy Console (no impact stated)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Multiple Networks in Colombia (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Delayed A2P Campaign Approvals (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Czech Republic (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Verizon United States (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Brisanet Brazil (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Post Dial Delay from a Subset of Twilio Phone Numbers to Brazil (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to MTN Nigeria (minor)
- 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Silent and One-Way Audio from Gamma United Kingdom to a Subset of Twilio United Kingdom Phone Numbers (minor)
- 2026-10-15: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated declines on Mastercard (no impact stated)
- 2026-10-15: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported CCA Automations are delayed when starting an Automation (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Post Dial Delay from a Subset of Twilio Toll-Free, Landline, and Mobile Phone Numbers to Multiple Networks in Multiple Countries (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures from Austria to a Subset of Twilio Austria Phone Numbers (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Email suppression issues (no impact stated)
- 2026-10-15: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated declines on Visa (no impact stated)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Brisanet Brazil (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from France to a Subset of Twilio Short Codes (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Network Subscribers to Twilio Colombia Shortcode Numbers (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase in Philippines (minor)
- 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays From a Subset of Twilio Phone Numbers to Surf Telecom Brazil (minor)
- 2026-10-15: [Stripe](https://thirdpartyindex.com/vendors/stripe#status), which Fastmail lists as a subprocessor, reported Elevated Amazon Pay errors (no impact stated)
- 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Failures from Twilio Alphanumeric Sender IDs and Long Codes to Evatis Djibouti (minor)
- 2026-10-14: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Cursor-powered Custom Agents unable to load Notion tools (no impact stated)
- 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Mobile Puerto Rico (minor)
- 2026-10-14: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service degradation affected Zoom AI Companion in US region (no impact stated)
- 2026-10-14: [PagerDuty](https://thirdpartyindex.com/vendors/pagerduty#status), which Fastmail lists as a subprocessor, reported Postmortem Published - Delayed escalation of incidents and responder request invitations (minor)
- 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio to Altan Redes Mexico (minor)
- 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures and Post Dial Delay from Twilio Phone Numbers to Israel (minor)
- 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Automated Alert: No Customer Impact (no impact stated)
- 2026-10-14: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affected Sandbox Creation in ZoomMate (no impact stated)
- 2026-10-14: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Fastmail lists as a subprocessor, reported Ingestion Halted for EAP data in EU (major)
- 2026-10-14: [SurveyMonkey](https://thirdpartyindex.com/vendors/surveymonkey#status), which Fastmail lists as a subprocessor, reported Login and signup issues (no impact stated)
- 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures between Twilio and Multiple Networks in Brazil and Italy (minor)
- 2026-10-14: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service Degradation Affecting Zoom Clips (minor)
- 2026-10-13: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Form submission issues (resolved) (no impact stated)
- 2026-10-13: [GitHub](https://thirdpartyindex.com/vendors/github#status), which Fastmail lists as a subprocessor, reported \[Retroactive\] Actions workflow run logs delayed (minor)
- 2026-10-13: [Notion](https://thirdpartyindex.com/vendors/notion-com#status), which Fastmail lists as a subprocessor, reported Degraded performance in Notion and the Notion API (no impact stated)
- 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs to Beeline Kazakhstan (minor)
- 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Audio Quality Degradation between Twilio Phone Numbers and Multiple Networks in Brazil (minor)
- 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to VIVACOM Bulgaria (minor)
- 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Fastmail lists as a subprocessor, reported Voice Call Failures between a Subset of Twilio South Africa Phone Numbers and Multiple Networks in South Africa (minor)
- 2026-10-13: [Zoom](https://thirdpartyindex.com/vendors/zoom#status), which Fastmail lists as a subprocessor, reported Service degradation affecting Zoom Meeting API in US region (no impact stated)

The subprocessor list as we read it on any date: https://thirdpartyindex.com/labs/time-machine/fastmail

## Security contact

From its security.txt (https://www.fastmail.com/.well-known/security.txt) ([evidence](https://thirdpartyindex.com/evidence/1771)):

- Contact: https://www.fastmail.com/bug-bounty/
- Disclosure policy: https://www.fastmail.com/bug-bounty/
- Languages: en
- Valid until 2027-06-24

---

Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api