Postmark sub-processors
Postmark publishes the list below on its own site. We check that page daily and record what moves, so this page shows the current list and what changed before it.
Compiled automatically from Postmark's own published page, linked above. This is a convenience copy, not an official statement by Postmark, and automated reading can lag behind or misinterpret a page. Confirm against the source before relying on it.
Current sub-processors
| Sub-processor | Purpose | Location |
|---|---|---|
| Deft (formerly known as ServerCentral) | Infrastructure hosting | — |
| Amazon Web Services | Cloud infrastructure hosting | — |
Change history
No changes since monitoring began.
Watching this page daily since 01 Sep 2026.
Why this matters if you use Postmark
Under GDPR Article 28(2), your own customers are usually entitled to notice before you add or replace a sub-processor — and Postmark's sub-processors are part of that chain. The notice period in a typical DPA is 10 to 30 days, and it starts when the vendor updates their page, not when you notice.
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