What does this skill do?

The Email Integration with Mailtrap Skill provides patterns and best practices for implementing transactional email delivery using the Mailtrap Email API. It ensures proper separation between development and production environments, includes domain verification with SPF, DKIM, and DMARC, and adds error handling with exponential retries and detailed logging.

Initial Settings
Set up email integration in a new project with separate sandbox and production environments from the start.
Delivery Debugging
Determine why emails aren't being delivered in development or staging environments and correct the settings.
Domain Verification
Add DNS records (SPF, DKIM, DMARC) and validate the domain in the Mailtrap dashboard for production.
Retry and Logging
Implements a retry system with exponential backoff, detailed logging, and notifications for critical failures.

Usage examples

📧 Standard Shipping
I need to set up the sending of registration confirmation emails using Mailtrap, with separate sandbox and production environments.
🔒 Verify domain
Please help me set up the SPF, DKIM, and DMARC DNS records to verify my domain on Mailtrap and start sending emails in production.
🔁 Retry attempts with logging
Add a retry system with exponential backoff and detailed logging to the sending of transactional emails for my project.
🐛 Debug delivery
Password reset emails aren't arriving in the staging environment. Please review my code and the Mailtrap configuration to find the problem.

Features

Environment Separation Use different endpoints and tokens for the sandbox (development) and production environments to prevent accidental submissions to real users.
Domain Verification Step-by-step guide to configuring SPF, DKIM, and DMARC with your domain provider and validating them in Mailtrap.
Exponential Retry Algorithms Retry system with exponential backoff, logging of each attempt, and notification of critical failures to the administrator.
Robust Error Handling Explanation of status codes 401, 403, 422, and 429, with corrective actions for each case.
Patterns in TypeScript Practical examples of TypeScript implementation using fetch, with typing and a structure ready for integration into any project.

Frequently asked questions

Yes. You need a Mailtrap account (free or paid) to obtain the sandbox and production tokens and set up the environment variables.
In the sandbox, emails are captured in a virtual Mailtrap inbox without being sent to actual recipients. In production, emails are delivered to recipients as long as the domain is verified.
You must add SPF, DKIM, and DMARC records with your domain provider. The skill guides you through the process, and then you validate the configuration in the Mailtrap dashboard.
The patterns and logic for routing, retries, and error handling are applicable to any language. The code examples are written in TypeScript but can be easily adapted.
Email Integration with Mailtrap — Transactional Emails with Claude AI

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