Postmark Integrations: Native, Zapier, and API
Postmark’s integration story is thinner in headline numbers than Mailchimp’s 300+ or Zapier’s 9,000+ but denser in developer tools. Where most SMTP providers focus on marketing-UI plugins, Postmark leans into WordPress, CMS adapters, no-code platforms (Bubble, Supabase, Netlify), and workflow automation. The directory below flags each integration with a type badge so you can tell first-party plugins from third-party bridges before committing.
At a glance
Native, first-party
maintained by ActiveCampaign (Postmark’s parent)
Zapier / Make bridges
gateway to 9,000+ apps via Zapier ecosystem
API / 3rd party
via Postmark Email API + SMTP
Integrations directory
The 28 integrations most relevant to typical Postmark buyers, grouped by category. Not exhaustive: Postmark’s full directory at postmarkapp.com/integrations continues to grow, and any developer tool can talk to Postmark through the Email API or SMTP relay. Tap any card to open its official install page.
Native only
Zapier / Make
API / 3rd party
Jump to category ↓
WordPress & CMS (5)
Official plugin by ActiveCampaign. Routes wp_mail() through Postmark for reliable delivery and full activity tracking in your Postmark dashboard.
The #1 WordPress SMTP plugin (3M+ installs) ships a first-class Postmark mailer preset. No SMTP credentials to manage — just paste your Server API Token.
Route Gravity Forms notifications through Postmark instead of wp_mail() for guaranteed delivery of contact-form submissions and admin alerts.
Dedicated WordPress SMTP plugin from Gravity Forms with Postmark as a supported mailer, plus multi-mailer failover for enterprise WP sites.
Official mail adapter for Craft CMS 4+. Drop-in replacement for the default mailer with full support for transactional streams and templates.
Developer platforms (3)
Send Supabase Auth emails (magic links, password resets, invites) through Postmark SMTP instead of Supabase’s built-in provider for full deliverability control.
Connect Netlify sites and Functions to Postmark for contact form submissions, transactional emails triggered by Netlify Forms, and CI/CD notifications.
No-code app builder with a Postmark plugin for sending transactional and template-based emails from your Bubble workflows.
CRM & Marketing tools (4)
Route Customer.io transactional messages through Postmark for delivery, while keeping Customer.io as the workflow and segmentation engine.
Postmark’s parent company. Full ActiveCampaign marketing automation with Postmark handling transactional traffic in parallel from the same dashboard.
Self-hosted email marketing platform by Spatie with native Postmark driver for broadcasts and automations while keeping list ownership on your servers.
Route Stripe customer receipts, invoice emails, and subscription notifications through Postmark for reliable delivery and branded sender addresses.
Email design & templates (4)
Design responsive HTML emails directly in Figma and export to Postmark templates via the Emailify plugin. Keeps designers in their native tool.
Drag-and-drop email editor with one-click export to Postmark templates. Supports AMP for Email and interactive components.
Custom email template builder purpose-built for Postmark. Component-based, developer-friendly, ships React components alongside HTML output.
Design email templates in Figma, generate production-ready HTML for Postmark. AI-assisted layout suggestions and one-click template export.
Analytics & Monitoring (1)
Forms & Lead capture (1)
Automation & No-code (5)
Official Postmark integration on Zapier. 3 triggers (bounce, spam complaint, new inbound), 2 actions (send email, send email with template). Bridge to 9,000+ apps.
Visual workflow builder (ex-Integromat) with Postmark modules for sending emails, watching bounces, and managing sender signatures programmatically.
Self-hostable open-source workflow automation with a maintained Postmark community node. Full send/template/webhook coverage.
Workflow automation for WordPress and SaaS with Postmark send/receive actions. Native WordPress connector with visual builder.
Official command-line tool by ActiveCampaign. Manage servers, sync templates via git-friendly file structure, tail activity from your terminal. npm install postmark-cli -g.
Communication (2)
Route Postmark webhook events (bounce, spam complaint, delivery failures) to Slack channels for real-time alerting. Direct webhook config, no bridge required.
Log Postmark activity (sends, bounces, opens) to Google Sheets via Zapier for lightweight reporting without spinning up a data warehouse.
Developer toolchain (3)
Official Grunt plugin for automating template deploys and email content workflows in your build pipeline. npm install grunt-postmark –save.
Official Model Context Protocol server. Lets AI agents (Claude Desktop, Cursor) send emails, list templates, and pull delivery stats. 4 tools, released June 2025.
Newsletter and campaign management plugin for Craft CMS with Postmark as the recommended transport for reliable delivery at scale.
Frequently asked questions
Does Postmark have a native WordPress plugin?
Yes. The Postmark for WordPress plugin is maintained by ActiveCampaign (Postmark’s parent) and routes wp_mail() calls through the Postmark API. For sites that need a full SMTP plugin with multiple mailer support and failover, WP Mail SMTP ships a first-class Postmark mailer preset.
How many integrations does Postmark have?
Postmark’s official integrations page lists roughly 25-30 curated integrations spanning WordPress, CMS adapters, developer platforms (Supabase, Netlify, Bubble), CRM tools, email design apps, and workflow automation. Beyond the curated list, Zapier adds 9,000+ apps reachable through 3 triggers and 2 actions. Anything not covered natively or via Zapier connects through the Postmark Email API v1 or SMTP relay.
Which Postmark integrations are official vs third-party?
Official (maintained by ActiveCampaign): the WordPress plugin, Craft CMS mail adapter, Postmark CLI, Grunt Postmark, Postmark MCP server, and the Zapier integration. Everything else on the integrations page is third-party — either partner-built (Customer.io, ActiveCampaign transactional integration, Mailcoach) or community-maintained (n8n, Bubble plugin). All are functional; official integrations get faster bug fixes when Postmark’s API changes.
Can I use Postmark with WP Mail SMTP for WordPress?
Yes. WP Mail SMTP (3M+ installs) has a dedicated Postmark mailer preset in both the free and paid tiers. Configuration takes 60 seconds: install WP Mail SMTP, select Postmark as the mailer, paste your Server API Token, choose your default message stream. No SMTP host/port to configure — the plugin uses the Postmark HTTP API under the hood.
Does Postmark integrate with Supabase for auth emails?
Yes, via SMTP. Configure Supabase Auth to use Postmark’s SMTP relay (smtp.postmarkapp.com:587) instead of Supabase’s default provider. This gives you full deliverability control over magic links, password resets, and invite emails, plus visibility in the Postmark Activity dashboard. Documented in the Supabase Auth SMTP guide.
Can I send emails from Zapier through Postmark?
Yes. Zapier has an official Postmark integration with 3 triggers (bounce, spam complaint, new inbound email) and 2 actions (send email, send email with template). Combined with Zapier’s 9,000+ app catalog, this covers most no-code integration needs. Note: each Zapier task consumes one Zapier task credit — check your Zapier plan quota before scaling.
Are there official Postmark connectors for AI agents or MCP tools?
Yes. Postmark ships an official MCP server maintained by ActiveCampaign at github.com/ActiveCampaign/postmark-mcp. Four tools: send email, send with template, list templates, pull delivery stats. Compatible with Claude Desktop, Cursor, and any MCP-aware AI assistant. See our API + MCP tab for full MCP setup details and the wider MCP landscape for email.
This review follows our email infrastructure testing methodology. We disclose affiliate relationships in our editorial independence policy.
