smtp-client

A free & open modern, fast email client with user-friendly encryption and privacy features

A cross-platform .NET library for IMAP, POP3, and SMTP.

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

Collaborative open-source successor to qmail

asyncio smtplib implementation

Makes sending emails easy and DRY — For Python 3.

mailproxy is a simple SMTP proxy. It receives emails through an unencrypted, unauthenticated SMTP interface and retransmits them through a remote SMTP server that requires modern features such as encryption and/or authentication. mailproxy is primarily useful for enabling email functionality in legacy software that only supports plain SMTP.

Ansible role to set up postfix in Debian-like systems

Minimal SMTP client in Go. Handles MX lookup, mail server connection on common ports.

High throughput Go SMTP pool library with graceful handling of idle timeouts, errors, and retries.

IMAP, POP3 and SMTP clients for Dart developers. Contains both low level as well as a high level API.

SMTP Client Library in C

Moved to https://github.com/SimplifyNet. Simplify is a set of .NET libraries that provide infrastructure for your applications. DI and mocking friendly.

Object-Oriented Email Sending Java SDK

💌 SMTP client library for Clojure. That’s it.

🌰️🐿️ SquirrelMail GitHub Repository (PHP 7-OK!)

Simple smtp client

This is a SMTP client written in go

A plugin for ActionMailer to send emails via MailPace.com

ESP32 with HTTP server, Telnet server, file system, FTP server FTP client, SMTP client, cron daemon and user management