# Master Inbox

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

- Page: https://thirdpartyindex.com/vendors/master-inbox
- Documents last verified: 2026-10-05
- Transparency rating: 79/100 (how much it publishes, not how secure it is): Subprocessor list 30/30; Processing locations 8/8; Purposes 7/7; Data processing addendum 12/12; Trust center 8/8; Privacy policy 6/6; security.txt 0/6 (not found); Security page 0/5 (not found); Status page 0/5 (not found); Vulnerability disclosure 0/5 (not found); Pages still reachable 8/8
- Supply chain: relies on 10 tracked vendors directly, 97 within two hops, 353 within three; 0 tracked vendors rely on it directly, 0 within two hops, 0 within three
- Cite as: Master Inbox, Third Party Index, https://thirdpartyindex.com/vendors/master-inbox (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Trust center | https://masterinbox.com/security | 2026-10-05 | 2026-10-05 |
| Subprocessor list | https://masterinbox.com/subprocessors | 2026-10-05 | 2026-10-05 |
| Data processing addendum | https://masterinbox.com/legal-dpa | 2026-10-05 | 2026-10-05 |
| Privacy policy | https://masterinbox.com/privacy-policy | 2026-10-05 | 2026-10-05 |
| Terms | https://masterinbox.com/terms-and-conditions | 2026-10-05 | 2026-10-05 |

## Subprocessors (10)

As its own list states them.

| Subprocessor | Purpose | Location | Listed since |
|---|---|---|---|
| [Google (Gemini)](https://thirdpartyindex.com/vendors/google-cloud.md) (AI model provider: Google Vertex AI / Gemini) | AI classification (opt-in only) | Region varies | 2026-10-05 |
| [Hetzner](https://thirdpartyindex.com/vendors/hetzner-online.md) | Hosting (compute, DB, storage) | Finland, Germany | 2026-10-05 |
| [HubSpot](https://thirdpartyindex.com/vendors/hubspot.md) | CRM sync (if enabled) | Region varies | 2026-10-05 |
| [Intercom](https://thirdpartyindex.com/vendors/intercom.md) | Customer support | Region varies | 2026-10-05 |
| [OpenAI](https://thirdpartyindex.com/vendors/openai.md) (AI model provider: OpenAI) | AI classification (opt-in only) | Region varies | 2026-10-05 |
| [Paddle](https://thirdpartyindex.com/vendors/paddle.md) | Billing and payments | Region varies | 2026-10-05 |
| [Pipedrive](https://thirdpartyindex.com/vendors/pipedrive.md) | CRM sync (if enabled) | Region varies | 2026-10-05 |
| [Postmark](https://thirdpartyindex.com/vendors/postmark.md) | Transactional email delivery | Region varies | 2026-10-05 |
| [Slack](https://thirdpartyindex.com/vendors/slack.md) | Notifications/support | Region varies | 2026-10-05 |
| [Twilio](https://thirdpartyindex.com/vendors/twilio.md) | Messaging | Region varies | 2026-10-05 |

Read from ([evidence](https://thirdpartyindex.com/evidence/44766)). CSV: https://thirdpartyindex.com/vendors/master-inbox/subprocessors.csv

AI model providers (or a cloud provider's AI model service) among these entries: 2. All vendors that list one: https://thirdpartyindex.com/ai

## Subprocessor of (0)

No tracked vendor lists it.

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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