6 solution docs
Postmark solution docs
Transactional email with separate broadcast streams and 45 days of history.
Pick Postmark and all 6 land in docs/solutions/postmark/, next to the rules and skills that reference them.
Every Postmark doc in the registry
Tags: basic-auth · bounces · broadcast · ci · code-review · deliverability · dkim · dmarc · dns · errors · inactive-recipient · local-development · message-streams · mustachio · postmark · react-email · return-path · sandbox · spam-complaints · spf · suppression · templates · testing · transactional · unsubscribe · webhooks
Postmark bounce and spam complaint webhooks, secured without a signature
Postmark does not sign webhooks. Protect the endpoint with basic auth, act only on deactivating bounces, and make every write an upsert.
postmark · webhooks · bounces · spam-complaints
Postmark DKIM and custom Return-Path, and why DMARC fails without them
Postmark needs two DNS records per domain. DKIM signs the mail. The pm-bounces Return-Path CNAME makes SPF align. Skip one and DMARC alignment rests on the other.
postmark · dns · dkim · spf
Postmark error 406: you tried to send to a recipient that has been marked as inactive
A 406 means Postmark deactivated the address after a hard bounce, complaint or manual block. Do not retry it. Surface it, and reactivate only on the owner's request.
postmark · errors · suppression · bounces
Postmark message streams, transactional vs broadcast, and why the split protects your login emails
Postmark sends transactional and broadcast mail through separate streams with separate reputations and suppression lists. Route every send on purpose, and never put marketing on the transactional stream.
postmark · message-streams · broadcast · transactional
Postmark server-side templates vs React Email rendered in your app
Postmark can store templates and fill them with Mustachio. Rendering React Email in your app keeps templates in the repo, typed and reviewed. How to choose, and what each costs.
postmark · templates · react-email · mustachio
Testing Postmark without emailing anyone, POSTMARK_API_TEST vs sandbox servers vs bounce-testing
Postmark has three ways to send without reaching a real inbox. Each tests something different. Pick by what you need to prove.
postmark · testing · sandbox · ci