postmark

Configures Postmark API and SMTP for transactional and Supabase Auth email delivery.

Updated Aug 27, 2026
One-click install
npx skills add https://github.com/kellyclaudeai/cora --skill postmark
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: postmark
Source: https://github.com/kellyclaudeai/cora/tree/main/skills/postmark
Command: npx skills add https://github.com/kellyclaudeai/cora --skill postmark

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill streamlines email delivery for your application, handling both transactional emails via the Postmark API and essential Supabase authentication emails through SMTP.

Core Features & Use Cases

  • App Transactional Email: Send notifications, receipts, and other app-generated emails using the Postmark API.
  • Supabase Auth Emails: Configure Supabase to send signup, login, and password reset emails via Postmark's SMTP service, ensuring reliable delivery.
  • End-to-End Setup: Provides guidance for API integration, SMTP configuration, and necessary DNS records for optimal deliverability.

Quick Start

Send a test email to '[email protected]' using the Postmark API with your server token and from email address.

Frequently Asked Questions about postmark

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Why are my Supabase Auth emails failing to deliver?

Supabase Auth emails often fail due to misconfigured SMTP or missing DNS records. This Skill configures Postmark SMTP credentials and essential DNS records for domain verification to ensure reliable delivery of signup and password reset emails.

How do I send transactional emails using the Postmark API?

You can send transactional emails using the Postmark API by configuring your server token and sender address. This Skill provides scripts to manage API integration for sending notifications, receipts, and other app-generated messages.

What DNS records do I need to verify my domain for Postmark email delivery?

Domain verification for Postmark requires specific DNS records to ensure optimal deliverability. This Skill provides guidance on configuring the necessary DNS records alongside your API tokens and SMTP credentials.

Can I use Postmark SMTP for both app notifications and Supabase authentication emails?

Yes, Postmark handles both. You use the Postmark API for transactional app notifications and Postmark SMTP for Supabase Auth emails, with this Skill managing the end-to-end setup for both delivery methods.

How do I fix incorrect redirect URLs in Supabase Auth email links?

Incorrect redirect URLs in Supabase Auth emails cause failed logins and signups. This Skill addresses common Supabase Auth email delivery issues and ensures correct redirect URL configuration.

Do I need a separate email provider for transactional messages and Supabase Auth?

No, Postmark handles both. This Skill configures the Postmark API for transactional messages and Postmark SMTP for Supabase Auth emails, consolidating your email delivery setup.