MailDev

MailDev

MailDev is an email testing and debugging tool for developers. It allows you to intercept, view, and manipulate emails sent from your local development environment without actually sending them over the internet. Useful for testing email functionality in web apps.
MailDev image
email testing debugging

MailDev: Email Testing and Debugging Tool

MailDev is an email testing and debugging tool for developers. It allows you to intercept, view, and manipulate emails sent from your local development environment without actually sending them over the internet. Useful for testing email functionality in web apps.

What is MailDev?

MailDev is an open source email testing and debugging tool for developers. It runs a local SMTP server and web interface that allows developers to intercept emails sent from web apps or other services, without actually sending them over the internet.

Some key features of MailDev include:

  • Catches emails sent from any language or framework that can connect to SMTP
  • View messages in a web interface and inspect contents
  • Ability to edit messages or add attachments before passing to another recipient
  • Simulate various SMTP server responses like errors or slow connections
  • API for programmatically accessing captured emails

MailDev is useful for testing and debugging email functionality during local development and testing phases. Instead of spamming real inboxes while working on an app, MailDev provides a safe sandbox to preview how emails are rendered and ensure they are triggering properly from application code.

As an email debugging proxy, MailDev saves time over manually checking real inboxes, makes testing faster, and gives more insight into how email services are functioning. It works with any programming language and popular app frameworks like Node, Python, PHP, and more.

MailDev Features

Features

  1. Intercept emails sent from web apps
  2. View emails in a web interface
  3. Manipulate email content
  4. Supports SMTP and REST API
  5. Runs a local SMTP server to catch outgoing emails
  6. Works with any language/framework that supports SMTP

Pricing

  • Open Source
  • Free

Pros

Easy to setup and use

Great for testing email in development

Avoids sending test emails over the internet

Lets you inspect and modify emails

Open source and free

Cons

Only for local development testing

Does not fully emulate a real SMTP server

Limited email account and mailbox management features


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