Skip to main content
Postmark events are tracked with specific event type IDs in SendPost (69–78), allowing you to distinguish them from native SendPost events and other TPSP events.

​
Postmark Event Types

​
How Events Are Received

  • PMProcessed (69): Acknowledgement that SendPost received your message (your API request was accepted).
  • PMSent (70): Confirmation that the message was successfully sent to Postmark (Postmark accepted it for delivery).
  • All others: Delivered by Postmark to the SendPost webhook URL https://api.sendpost.io/tpsp/postmark/account/{accountId}. The webhook is registered for the Message Stream you selected at provider setup and includes triggers for Open, Click, Delivery, Bounce, and Spam Complaint.

​
Bounce Type Details

Postmark categorizes bounces by Type or TypeCode in the webhook payload:
Permanent failure (e.g. invalid address, domain doesn’t exist). Mapped when Postmark sends Type = HardBounce or TypeCode = 1. These addresses should be removed from your list.
Temporary or transient failure. Mapped for other bounce types. Postmark may retry; consider these as temporary issues.

​
Event Data

Each Postmark event processed by SendPost includes:
  • Metadata (from send): accountId, tpspId, subAccountId, emailType, messageId, messageSubject (used for attribution)
  • RecordType: Bounce, Delivery, Open, Click, SpamComplaint
  • MessageID, MessageStream, Tag
  • Record-type-specific fields (e.g. Recipient, DeliveredAt for Delivery; UserAgent, OriginalLink, Geo for Open/Click; bounce details for Bounce)

​
Event Type Quick Reference

​
Next Steps