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Postmark

Transactional email platform for servers, message streams, templates, senders, and delivery activity.

Supports transactional email infrastructure across domains, sender signatures, message streams, opens, and inbound email.

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Snow

Use Postmark with Snow

Snow is a personal AI assistant that builds real apps for you, and they can put Postmark to work.

What Snow can do with Postmark

These are the Postmark actions available to the apps you build with Snow. Connecting an account does not make Snow run these on its own.

Create Inbound Rule

Tool to create a new inbound rule trigger to block email from a specific sender or domain. Use when you need to prevent emails from specific addresses or domains from being processed.

Create Message Stream

Tool to create a new message stream. Use when you need to set up separate streams for transactional or broadcast emails.

Create Suppressions

Tool to add email addresses to the suppression list for a message stream. Use when you need to prevent emails from being sent to specific addresses.

Create Webhook

Tool to create a new webhook configuration for Postmark. Use when you need to set up a webhook to receive event notifications for email tracking (opens, clicks, bounces, deliveries, etc.).

Get Message Stream

Tool to retrieve details of a specific message stream by its ID. Use when you need to inspect stream configuration such as type, description, or subscription settings.

Get Webhook

Tool to retrieve details of a specific webhook by its ID. Use when you need to inspect webhook configuration including URL, triggers, and message stream settings.

List Inbound Rules

Tool to list all inbound rules (triggers) configured for blocking senders. Use when you need to retrieve configured inbound rules with pagination support.

List Message Streams

Tool to list all message streams for a Postmark server with optional type and archive filtering. Use when you need to retrieve available message streams. A server may have up to 10 streams including defaults.

List Outbound Message Clicks

Tool to list clicks for outbound messages with filtering options. Use when you need to retrieve click events with pagination and optional filters like recipient, tag, client, OS, platform, or geographic location.

List Outbound Message Opens

Tool to retrieve opens for outbound messages with filtering options. Use when you need to analyze email open events with detailed client, OS, and geographic data.

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