Mailtrap
Mailtrap declares 12 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, Google Cloud and OpenAI. No published changes since we first read it on Nov 7, 2026. 2 tracked vendors name Mailtrap as a subprocessor, including Digistorm AU and Leadjourney.
Not loaded by any published homepage.
Subprocessors CSV of Mailtrap's subprocessors · Atom feed of Mailtrap's subprocessors DORA draft CSV of Mailtrap's subprocessors as declared by Mailtrap what's this? ·
12 third parties.
| Name | Purpose | Location | Listed since |
|---|---|---|---|
| Amazon Web Services, Inc. | Infrastructure | The United States | |
| E-HAWK LLC | Risk assessment | The United States | |
| GitBook Inc. | Infrastructure – powers the in-app AI Assistant | The United States | |
| Google Inc. | Infrastructure | The United States | |
| Mailgun Technologies, Inc. | Infrastructure – email rendering previews | The United States | |
| Microsoft, Inc. (Clarity) | Product Analytics and Session Replay | The United States | |
| OpenAI OpCo, LLC AI | AI-assisted email content analysis for abuse prevention and security | The United States | |
| PayPal, Inc. (Braintree) | Payment processing | The United States | |
| Salesforce.com, Inc. (Heroku) | Infrastructure | The United States | |
| Slack Technologies Inc | Communication | The United States | |
| Stripe, Inc. | Payment processing | The United States | |
| Unlayer, Inc. | Infrastructure | The United States |
Web TechnologiesCSV of Mailtrap's web technologies · Atom feed of Mailtrap's web technologies
Mailtrap's homepage made 57 requests to 4 domains, and 1 service controlled by another company.
1 third party by category: CDN 1
Subprocessor of (2)CSV of the companies listing Mailtrap · Atom feed of the companies listing Mailtrap
Digistorm AU digistorm.com Email testing; Internal Business Operations - Applications, Services, and Support
Leadjourney leadjourney.io Transactional email delivery
Incidents reported by Mailtrap's subprocessorsCSV of incidents reported by vendors Mailtrap lists · Atom feed of incidents reported by vendors Mailtrap lists
47 reported incidents in the last 30 days, by 4 of the vendors Mailtrap lists as subprocessors.
A subprocessor list names a company, not the service an incident touched. This does not show that Mailtrap was involved.
And 22 more. All of them: CSV · Who is around them.
ChangesCSV of Mailtrap's changes · Atom feed of Mailtrap's changes
See the list as we read it on any date: Time machine
None since tracking began.
Rating badge for Mailtrap's site
It updates with the rating.
<a href="https://thirdpartyindex.com/vendors/mailtrap-io"><img src="https://thirdpartyindex.com/badge/mailtrap-io.svg" alt="Mailtrap transparency rating on Third Party Index" height="20"></a>[](https://thirdpartyindex.com/vendors/mailtrap-io)