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

✉️ Composable all-in-one mail server.

An OOB interaction gathering server and client library

Golang package that generates clean, responsive HTML e-mails for sending transactional mail

Mini SMTP server written in golang

📤 An SMTP client & server library written in Go

Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.

A third-party, open-source ProtonMail CardDAV, IMAP and SMTP bridge

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

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

📧 Easy to use, yet comprehensive library for sending mails with Go

Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.

Self-hosted server for the ProtonMail client

Fork of gomail.

🐳 A bring-your-own-SMTP-server mail relay with REST API and web UI

An elegant MIME/SMTP email library with support for attachments

A small program that listens for SMTP and sends all incoming Email messages to Telegram

Golang SMTP server

Top geek's chindogu - personal assistant over satellite/telephone/SMS/chatbot, plus web infrastructure servers (web & mail, ad-free DNS, TCP-over-DNS, web proxy, etc)

mnm implements TMTP protocol. Let Internet sites message members directly, instead of unreliable, insecure email. Contributors welcome! (Server)