Postmark Account-level API

Email · Operational · 30d uptime 100%

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Postmark makes sending and receiving email incredibly easy. The Account-level API allows users to configure all Servers, Domains, and Sender Signatures associated with an Account.

Trust signals

Pricing

PAID

Auth

API_KEY

CORS

Yes

Rate limit

Unknown

Health

359ms

Trust score

97 (A)

Last checked Oct 16, 2026 · uptime 24h 100% / 7d 100% / 30d 100%

Excellent production-readiness signals.

Links

Documentationpostmarkapp.com
Base URLapi.postmarkapp.com
OpenAPI specapi.apis.guru/v2/specs/postmarkapp.com/account/0.9.0/swagger.json

Integration checklist

Auth is API_KEY
CORS enabled — callable directly from browsers.
Rate limit: not documented

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