postmark-automation

# Postmark Automation via Rube MCP Automate Postmark transactional email operations through Composio's Postmark toolkit via Rube MCP. **Toolkit docs**: [composio.dev/toolkits/postmark](https://composio.dev/toolkits/postmark) ## 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`, `To`, ...