200 Open source projects that are alternatives of or similar to WP_Mail

Fast Advanced Spam Analysis Tool

OX COI Messenger - a Flutter app for the COI (Chat Over IMAP) standard

Simple Python API that that allows you to send texts via SMTP with a best effort approach and process replies via IMAP

Swaks - Swiss Army Knife for SMTP

The legitimate email replacement — n-identity, decentralized, store-and-forward, open protocol, open source. (Server)

A self hosted REST API for message delivery

✉️ Composable all-in-one mail server.

Parse Server Module to easy send emails via SMTP with a customizable template option

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.

SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

Golang SMTP server

The best free email forwarding for custom domains. Visit our website to get started (SMTP server)

Mailozaurr is a PowerShell module that aims to provide SMTP, POP3, IMAP and probably some other ways to interact with Email. Underneath it uses MimeKit and MailKit libraries written by Jeffrey Stedfast.

Magento 2 SMTP Extension helps the owner of store simply install SMTP (Simple Mail Transfer Protocol) server which transmits the messages into codes or numbers.

email-actions is a tiny SMTP server with a rules based engine to trigger any actions (notifications/commands etc) based on the emails sent to this server

Makes sending emails easy and DRY — For Python 3.

IMAP or SMTP honeypot written in Golang

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

[NEW] : Simple Mail Transfer Protocol (SMTP) CHECKER - CRACKER Tool V2

✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat

Rust implementation of catapulte email sender

Simple SMTP server / postfix null relay host for your Docker and Kubernetes containers. Based on Alpine Linux.

small mail server

Swift SMTP client

An SMTP gateway for Apprise notifications.

DavMail POP/IMAP/SMTP/Caldav/Carddav/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at

mailing lists - the unix way

golang library for smtp based email validation

An elegant MIME/SMTP email library with support for attachments

A collection of libraries and tools written in Go.

Insular email distribution - mail server as Docker images

A python package designed to make sending messages easy and efficient!

A light-weight, modular, message representation and mail delivery framework for Python.

Simple e-mail sending library

VMime Mail Library

NodeJs code for Firing Email via AWS-Lambda and SES

Lightweight SMTP client written in Go

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

A reimplementation of the Python stdlib smtpd.py based on asyncio.

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

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

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

📩🛡 Email privacy. Anonymously send and receive with alias forwarding.

Smtp server for mass emailing, managing email lists and more. Built on .NET Core. Linux, MAC and Windows compatible.

A Lightweight High Performance ESMTP email server

Fat-Free Sugar Mailer Plugin

Send email in Python conveniently for gmail using yagmail

Mirrored from GitLab! Monitoring and automation for Open Source email servers, starting with Postfix. Please do not submit issues or PRs here - join us at: https://gitlab.com/lightmeter

mailio is a cross platform C++ library for MIME format and SMTP, POP3 and IMAP protocols. It is based on standard C++ 17 and Boost library.

A bridge written in Golang to receive and write emails in matrix

Mini SMTP server written in golang

短信转发器——监控Android手机短信、来电、APP通知，并根据指定规则转发到其他手机：钉钉群自定义机器人、钉钉企业内机器人、企业微信群机器人、飞书机器人、企业微信应用消息、邮箱、bark、webhook、Telegram机器人、Server酱、PushPlus、手机短信等。包括主动控制服务端与客户端，让你轻松远程发短信、查短信、查通话、查话簿、查电量等。（V3.0 新增）PS.这个APK主要是学习与自用，如有BUG请提ISSUE，同时欢迎大家提PR指正

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

A simple, coroutine based Kotlin Email API for both client- and server-side projects

Reusable application for Django introducing a message delivery framework

A badass SMTP mail server built on Node to make your life simpler.

Log mailer is a program I made to email log files.

📧 A cross platform mail driver for GoLang. Featuring Mailgun, Postal, Postmark, SendGrid, SparkPost & SMTP.

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

Mail Analyzing Interface for email bounce: A Ruby library to parse RFC5322 bounce mails and generating structured data as JSON from parsed results. Ruby version of Sisimai: an error mail analyzer.