ActionPostmarkUpdated June 2026

How do I send a Postmark template email?

Short answer: Drop the "Postmark → Postmark Send Template Email" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 3 Postmark actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Template ID TemplateId	string	Optional	Numeric ID of the Postmark template, or use Template Alias instead
Template Alias TemplateAlias	string	Optional	String alias of the template (alternative to Template ID)
From From	string	Required	Sender email (must be a verified sender signature)
To To	string	Required	Recipient email address
Template Variables (JSON) TemplateModel	string	Optional	JSON object with template variable values, e.g. {"name": "John", "product": "Acme"}
Tag Tag	string	Optional	Tag for categorizing this email in Postmark analytics
Reply-To ReplyTo	string	Optional	Reply-to email address

Sample request

{
  "TemplateId": "e.g. 12345",
  "TemplateAlias": "e.g. welcome-email",
  "From": "noreply@yourcompany.com",
  "To": "recipient@example.com",
  "TemplateModel": "{\"name\": \"John\", \"action_url\": \"https://example.com\"}"
}

Returns

{
  "To": "recipient@example.com",
  "Message": "OK",
  "ErrorCode": 0,
  "MessageID": "abc-123-def-456",
  "SubmittedAt": "2025-01-15T12:00:00.0000000Z"
}

Use these fields in downstream nodes for routing, logging, or error handling.

FAQ

Questions about Postmark Send Template Email.

What does the Postmark Send Template Email action do in Postmark?

Fires a pre-built template with merge model. For production transactional patterns where templates are reviewed in Postmark UI and reused.

What inputs does Postmark Send Template Email require?

Required: From, To. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Postmark returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Postmark Send Template Email support batch operations?

Yes. Run Postmark Send Template Email inside a Loop node to process arrays. Tiny Command handles Postmark's rate limits automatically so you don't have to throttle manually.

How do I send a Postmark template email?

The fields this action accepts.

Apps that pair well as the trigger for Postmark Send Template Email.

Questions about Postmark Send Template Email.

Other Postmark actions.

Send postmark send template email from your workflows.