Mixmax

mixmax.com

Mixmax declares 21 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, OpenAI and Slack. No published changes since we first read it on Sep 22, 2026. 9 tracked vendors name Mixmax as a subprocessor, including SendSafely, Employment Hero and Hiver.

Subprocessors CSV · Atom DORA draft CSV what's this? · 

21 third parties.

NamePurposeLocationListed since
Amazon Web Services Hosting providerUSA
Amplitude Product AnalyticsUSA
Appcues Customer MessagingUSA
Atlassian Support ServicesUSA
Cloudinary Content HostingUSA
Customer.io Customer MessagingUSA
DataDog Loggining & MonitoringUSA
Fivetran Product AnalyticsUSA
Formstack WebformsUSA
Help Scout Support ServicesUSA
Hubspot Marketing ServicesUSA
Intercom Support ServicesUSA
Mailgun Email MessagingUSA
MongoDB Hosting ProviderUSA
OpenAI AIAI FunctionalityUSA
Productboard Product FeedbackUSA
Salesforce CRMUSA
Segment Product AnalyticsUSA
Slack Support ServicesUSA
Snowflake Product AnaylticsUSA
Typeform WebformsUSA

Web TechnologiesCSV · Atom

Mixmax's homepage made 97 requests to 24 domains, 9 services controlled by another company, and 1 domain not identified.

Analytics (4): HubSpot, Amplitude, Hotjar, MetaAdvertising (3): Google Cloud, OpenAI, Reddit, Inc.Live chat (1): reviewed: IntercomOther (1): Customer data platform: Segment

9 third parties by category: Analytics 4Advertising 3Live chat 1Other 1

Third parties 9 · 69 requests
Google Cloud DoubleClick Floodlight Google Analytics Google Tag Manager 19% of the page's requests 18
Intercomsubprocessor intercomcdn.com, intercom.io, intercomassets.com 16% of the page's requests 16
HubSpotsubprocessor HubSpot HubSpot Analytics 10% of the page's requests 10
Segmentsubprocessor Segment 1.84.3 10% of the page's requests 10
Amplitudesubprocessor Amplitude 4% of the page's requests 4
Hotjar Hotjar 3% of the page's requests 3
Meta Facebook Pixel 2.9.438 3% of the page's requests 3
OpenAIsubprocessor ChatGPT Ads Measurement Pixel 3% of the page's requests 3
Reddit, Inc. Reddit Ads 2% of the page's requests 2
Unknown 1 · 2 requests

cr-relay.com

First party 1 · 26 requests
Mixmax Astro 6.1.2 HSTS Intercom Open Graph Partytown Vercel core-js 3.32.2 27% of the page's requests 26

3 tracked companies loaded by the homepage are not in Mixmax's subprocessor list. A website can use a service without it processing customer data.

Subprocessor of (9)CSV · Atom

9 companies
  • AlphaSense alpha-sense.com Outreach services
  • Carta carta.com Scheduling and email automation
  • Chartbeat chartbeat.com Email monitoring and scheduling
  • Employment Hero employmenthero.com Processing Activity: Automation of email campaigns, scheduling, and tracking for customer engagement. GDPR Transfer Mechanism: Standard Contractual Clauses; Sales
  • Hiver hiverhq.com Marketing
  • Lokalise lokalise.com Sales engagement platform for Gmail
  • Optro optro.ai Customer Engagement
  • SendSafely explore.sendsafely.com Sales Email Automation
  • Zyte zyte.com Email and communication tool

Incidents reported by Mixmax's subprocessorsCSV · Atom

267 reported incidents in the last 30 days, by 14 of the vendors Mixmax lists as subprocessors.

A subprocessor list names a company, not the service an incident touched. This does not show that Mixmax was involved.

DateCompanyIncidentImpactLasted
SnowflakeINC20000347 minor32 min
SegmentMMS Delivery Failures from Twilio to GCI United States minor3 min
SegmentSMS Delivery Failures from Twilio 10DLC to AT&T United States minor4 h 3 min
SegmentSMS Delivery Failures from Twilio to Orange Sierra Leone minorongoing
SegmentSMS Delivery Failures From Long Code Numbers to AT&T in the US minor1 h 19 min
SegmentSMS Delivery Delays from Twilio to MTS Kazakhstan minorongoing
SegmentSMS Delivery Failures from a Subset of Twilio Phone Numbers to Tcell Tajikistan minorongoing
OpenAIUnable to start new Workspace Agent runs criticalongoing
SegmentMMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States minorongoing
SegmentSMS Delivery Failures from a Subset of Twilio Phone Numbers to K-Cell Kazakhstan minor7 h 23 min
OpenAIElevated errors affecting logins, sign-ups, and ChatGPT features minor8 min
SegmentVoice Call Failures in JP1 minor3 h 51 min
SegmentOn Call Engineers are Investigating no impact statedongoing
SegmentSMS Delivery Failures from Twilio to Turkcell Turkey minor3 h 54 min
SegmentRetroactive Incident Impacting Twilio Usage APIs no impact stated1 min
SegmentIssue resolved minor1 h 43 min
SegmentSMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela minor3 h 26 min
HubSpotSome HubSpot tools may be unavailable for some users no impact stated51 min
SegmentGateway API (Lookup API) Failure Increase on Verizon in United States minor10 h 23 min
OpenAIIncorrect cost data in Costs API exports no impact stated2 h 20 min
OpenAIElevated Errors On API minor42 min
SegmentWhatsApp Business API Message Send Failures minor16 h 29 min
OpenAIElevated ChatGPT Conversation Errors minor52 min
SegmentVoice Call Failures from a Subset of Twilio Phone Numbers to Chile minor19 h 20 min
SegmentVoice Call Audio Quality Degradation, Silent and One-Way Audio between Twilio and Multiple Networks in United Kingdom minor5 h 18 min

And 242 more. All of them: CSV · Who is around them.

ChangesCSV · Atom

See the list as we read it on any date: Time machine

None since tracking began.

Rating badge for Mixmax's site

Mixmax transparency rating

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