postmark-automation

Postmark Automation via Rube MCP

Automate Postmark transactional email operations through Composio's Postmark toolkit via Rube MCP.

Prerequisites

• Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
• Active Postmark connection via RUBE_MANAGE_CONNECTIONS with toolkit postmark
• Always call RUBE_SEARCH_TOOLS first to get current tool schemas

Setup

Get Rube MCP: Add https://rube.app/mcp as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.

1. Verify Rube MCP is available by confirming RUBE_SEARCH_TOOLS responds
2. Call RUBE_MANAGE_CONNECTIONS with toolkit postmark
3. If connection is not ACTIVE, follow the returned auth link to complete Postmark authentication
4. Confirm connection status shows ACTIVE before running any workflows

Core Workflows

1. Send Templated Batch Emails

When to use: User wants to send templated emails to multiple recipients in one call

Tool sequence:

1. POSTMARK_LIST_TEMPLATES - Find available templates and their IDs [Prerequisite]
2. POSTMARK_VALIDATE_TEMPLATE - Validate template with model data before sending [Optional]
3. POSTMARK_SEND_BATCH_WITH_TEMPLATES - Send batch emails using a template [Required]

Key parameters:

• TemplateId or TemplateAlias: Identifier for the template to use
• Messages: Array of message objects with `From