awesome-opensource-email

AgentJ is a free software anti-spam solution with human authentication and admin panel -

Anonymous email forwarding

The Anti-Spam SMTP Proxy (ASSP).

Blackhole is an MTA written on top of asyncio, utilising async and await statements that dumps all mail it receives to /dev/null.

SMTP (email) server with a focus on simplicity, security, and ease of operation -

Transactional email server with a lovely web interface -

Django email backends and webhooks for multiple ESP -

Easy to use, yet comprehensive library for sending mails with Ballerina -

Can I email… Support tables for HTML and CSS in emails.

A few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.

List of email CSS normalise/resets.

Quickly create responsive HTML emails that work on any device and client. Even Outlook. -

Collaborative messaging solution

Cypht: Lightweight Open Source webmail written in PHP and JavaScript -

Web based groupware server written in PHP -

CLI to manager email -

The mailserver suite with the 'moo' – 🐮 + 🐋 = 💕

The Roundcube Webmail suite -

A parser for SPF and DMARC DNS records -

A list of disposable/temporary email address domains -

A list of disposable email domains, cleaned and validated by scanning MX records. -

a list of disposable and temporary email address domains -

Disposable email domain lists, used in disposable email services, generated every quarter of an hour, in txt and JSON format. -

Anti-cheating, temporary (disposable/throwaway) email list -

A CLI for verifying email address deliverability over SMTP without sending an email. -

PHP Email address validator

Verify email address checking MX records, and SMTP connection, check for disposable email addresses and free email providers. -

A Go library for email verification without sending any emails. -

Downloads and flattends datas from Google Postmaster Tools (GPT)

Cross-language email validation. Backed by a database of over 55 000 throwable email domains.

Drag and drop HTML email designer -

DnD Email Editor based on React.js and MJML.

A free and open-source block-based email template builder -

A Resend Template-style WYSIWYG email editor with Notion-like editing that generates email-safe React Email templates. -

Render markdown into email-safe HTML -

Free and Open source Web Builder Framework. Next generation tool for building templates without coding

Thunderbird extension for managing emails with expiration dates -

Keila is an Open Source alternative to newsletter tools like Mailchimp or Sendinblue.

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Mailing platform with templates and logs included. -

Self hosted newsletter app

Open Source Marketing Automation Software