Postmark MCP server

Read from the package source without running it. The installed server may list more.

• activate_bounce

  Reactivate a bounce record in Postmark, allowing it to be processed again. This operation marks a previously bounced email address as active.

• bypass_inbound_message_rules

  Allow a blocked inbound message to bypass email filtering rules. Use this to whitelist or recover messages that were incorrectly filtered by the server's inbound rules.

• create_templatewrite action

  Create a new email template with a subject line and optional alias for easy reference. Templates can be used to standardize email content across your application.

• delete_templatewrite action

  Permanently delete a template by its ID or alias. This action cannot be undone.

• get_bounce_by_id

  Retrieve detailed information about a specific bounce event by its ID. Use this to inspect bounce details such as type, email address, and timestamp for a particular bounce occurrence.

• get_bounce_dump

  Retrieve the detailed dump data for a specific bounce event. This provides comprehensive information about why a message bounced, including diagnostic details and headers.

• get_delivery_stats

  Retrieve delivery statistics for messages sent through your Postmark server. This provides insights into message delivery performance and status.

• get_inbound_message_details

  Retrieve detailed information about a specific inbound message, including its content, metadata, and delivery status.

• get_message_opens_by_id

  Retrieve a paginated list of open events for a specific outbound message. Use offset and count parameters to navigate through the results.

• get_outbound_bounce_statistics

  Retrieve bounce statistics for outbound emails, with optional filtering by tag and date range to analyze delivery failures.

• get_outbound_click_stats

  Retrieve click count statistics for outbound links, with optional filtering by tag and date range to analyze link performance over time.

• get_outbound_clicks_by_location

  Retrieve click statistics for outbound links aggregated by body location. Use optional filters to narrow results by tag and date range.

• get_outbound_email_openswrite action

  Retrieve email open statistics for outbound messages, with optional filtering by tag and date range to analyze engagement metrics.

• get_outbound_message_details

  Retrieve detailed information about a specific outbound message, including delivery status, recipient information, and message content.

• get_outbound_message_dump

  Retrieve the full dump of an outbound message, including all metadata and content details. This operation requires authentication via a Postmark server token.

• get_outbound_send_statswrite action

  Retrieve statistics on sent messages, with optional filtering by tag and date range. Use this to analyze outbound sending activity over time.

• get_outbound_spam_stats

  Retrieve spam complaint statistics for outbound messages. Filter results by tag and date range to analyze spam performance metrics.

• get_outbound_stats

  Retrieve outbound email statistics and performance overview. Optionally filter results by tag and date range to analyze specific sending campaigns or time periods.

• get_outbound_tracked_email_statswrite action

  Retrieve counts of tracked outbound emails, with optional filtering by tag and date range. Use this to monitor email delivery metrics for a specific time period or tag.

• get_server_configuration

  Retrieve the configuration and settings for the authenticated Postmark server, including delivery settings, bounce handling, and other server-level configurations.

• get_template

  Retrieve a specific email template by its unique identifier or alias. Use this to fetch template details for rendering, previewing, or managing email communications.

• list_bounces

  Retrieve a paginated list of email bounces from your Postmark server, with optional filtering by bounce type, email address, date range, and other criteria.

• list_email_opens_by_platformwrite action

  Retrieve email open statistics aggregated by email client platform. Filter results by tag and date range to analyze which platforms your recipients use to open emails.

• list_inbound_rule_triggers

  Retrieve a paginated list of inbound rule triggers configured for the server. Use count and offset parameters to control pagination through the results.

• list_message_opens

  Retrieve a paginated list of message open events across all messages, with optional filtering by recipient, tags, client details, location, and platform.

• list_message_outbound_clicks

  Retrieve click statistics for a specific outbound message, including details about each click event with pagination support.

• list_outbound_click_stats_by_platform

  Retrieve outbound click statistics aggregated by browser platform. Use optional filters to narrow results by tag and date range.

• list_outbound_email_opens_by_clientwrite action

  Retrieve email client statistics for outbound message opens, optionally filtered by tag and date range. Use this to analyze which email clients your recipients use when opening messages.

• list_outbound_message_clicks

  Retrieve click events from outbound messages with pagination and optional filtering by recipient, tags, client details, device information, and geographic location.

• list_templates

  Retrieve a paginated list of email templates associated with this Postmark server. Use Count and Offset parameters to control pagination through your template collection.

• retry_inbound_message

  Retry processing of a previously failed inbound message. Use this operation to reprocess a message that encountered an error during initial delivery or processing.

• search_messages_inbound

  Search and retrieve inbound messages with filtering by recipient, sender, subject, status, date range, and other metadata. Results are paginated using count and offset parameters.

• search_messages_outbound

  Search and retrieve outbound messages with filtering by recipient, sender, status, date range, and tags. Results are paginated using count and offset parameters.

• send_emailwrite action

  Send a single email message through Postmark. Supports attachments, custom headers, link and open tracking, and email tagging for analytics.

• send_email_batch_with_templateswrite action

  Send multiple emails in a single batch request using predefined email templates. This operation allows efficient bulk email delivery with template-based content.

• send_email_with_templatewrite action

  Send an email to one or more recipients using a pre-defined email template. The template can be identified by either its numeric ID or string alias, and dynamic content is populated via the TemplateModel object.

• send_emails_batchwrite action

  Send multiple emails in a single batch request to efficiently deliver messages through Postmark's email service.

• update_templatewrite action

  Update an existing email template by its ID or alias. Modify the template's name, subject line, or alias identifier.

• validate_template

  Validate template content by testing subject lines, HTML, and text body rendering with optional CSS inlining and a test data model.

• Code scan5 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancelast push 138 days ago8/15
• Maintainer identityregistry namespace matches repository owner7/10

Safety score

80/100

higher than 65% of 916 Email servers

Tools

39

the typical Email server has 7

Tools that change things

31%

typical: 25%. Fewer write tools means less an agent can break

GitHub stars

31

more than 92% of 493 Email servers

Downloads a week

154

more than 67% of 235 Email servers with a package

Postmark: common questions

Is Postmark MCP server safe?

Mostly: it is graded B (80/100). Read the Postmark safety report

How do I install Postmark?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does Postmark need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Postmark maintained?

The last commit was 176 days ago (2026-05-12). The latest release is v1.0.2.

What can I use instead of Postmark?

Servers from other publishers that do the same job: MisarMail MCP Server, SendGrid Transactional MCP server and Agenticmail MCP server. Compare all Postmark alternatives.

How does Postmark compare with other Email MCP servers?

safety score 80/100 (higher than 65% of 916 Email servers); tools 39 (the typical Email server has 7); tools that change things 31% (typical: 25%. Fewer write tools means less an agent can break). Full comparison.