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TriggerPostmarkReal-timeUpdated June 2026

When does Postmark fire on bounces?

Short answer: Drop the "Postmark → Postmark Email Bounced" trigger on your workflow canvas, add filters if you want them, and publish. It fires within seconds of the event in Postmark, not on a polling schedule.

Use this triggerAll 6 Postmark triggers
Anatomy

What this trigger looks like in a workflow.

Drop it on the canvas. Configure a couple of fields. Publish.

In the builder
Trigger
Postmark Email Bounced
When the matching event happens
new email bouncedwhen an email bounceson email bouncedwhen email bouncedwatch for email bounced
What this trigger returns
for the curious

You don’t need to read this. Tiny Command auto-maps every field into the visual picker so downstream nodes can pull values by clicking. We show it here for power users who want to know what’s on the wire.

{
  "event": "Bounce",
  "recipient": "user@example.com",
  "message_id": "msg-123-456"
}
Output shape

Fields available to downstream nodes.

Every field below can be referenced by name in any action or filter that comes after this trigger.

FieldTypeExample
eventstring"Bounce"
recipientstring"user@example.com"
message_idstring"msg-123-456"
Pairs with

Drop these actions after Postmark Email Bounced.

Add Labels to Message
Gmail · Email
Add Reaction
Slack · Communication
Add Sheet Tab
Google Sheets · Spreadsheets & Databases
Create Company
HubSpot · CRM & Sales
FAQ

Questions about Postmark Email Bounced.

How does the Postmark Email Bounced trigger work in Postmark?
Fires when an email bounces. Postmark has industry-leading bounce-classification — payload includes detailed bounce type for downstream logic.
Is the Postmark Email Bounced trigger real-time?
Yes. Postmark Email Bounced uses webhooks or push subscriptions, not polling. Your workflow fires within seconds of the event happening in Postmark.
What data does Postmark Email Bounced return?
The full event payload from Postmark. The output shape table on this page lists every field, its type, and an example value so you can map fields into downstream nodes.
Can I filter Postmark Email Bounced so only some events start a workflow?
Yes. Add a Filter node right after the trigger and match on any field, whether that's subject, sender, status, or anything else in the payload. Workflows only continue when the filter passes.
Do I need Postmark admin permissions to use Postmark Email Bounced?
For most Postmark accounts a standard user can authorize the trigger. Some Postmark plans require an admin to enable third-party webhooks. Check Postmark's docs if the trigger fails to register.
More triggers

Other Postmark triggers.

Trigger
Postmark Email Delivered
Fires when the recipient mail server accepts. For transactional confirmation workflows that need to log "the password reset actually delivered".
Trigger
Postmark Email Opened
Fires on first open per recipient per email. For engagement tracking or for "warm lead detection" workflows.
Trigger
Postmark Link Clicked
Fires when a recipient clicks a tracked link. High-resolution engagement signal — branch on URL for granular automation.
Trigger
Postmark Spam Complaint
Fires when a recipient marks the email as spam. The critical sender-reputation hook — immediate suppression from all future sends is essential.
Trigger
Postmark Subscription Changed
Fires when a recipient changes their subscription preferences (e.g., unsubscribes from a specific stream). For compliance workflows that mirror preferences across systems.

Build a workflow on this trigger.

One trigger. 3+ downstream actions. Zero glue.

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