257 Open source projects that are alternatives of or similar to Esp32 Mail Client

.NET email library and proxy supporting IMAP, POP3, and SMTP with S/MIME and PGP.

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

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

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

asynchronous library for sending and receiving mail via fs2._

Poste.io plugin for Dokku

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

✉️ Composable all-in-one mail server.

Library to send e-mails over different transports and protocols (like SMTP and IMAP) using immutable messages and streams. Also includes SMTP server.

Skirnir Email Server

Email-based instant messaging for Desktop.

⚡️Arduino Mail Client Library to send, read and get incoming mail notification for ESP32, ESP8266 and SAMD21 devices. The library also supported other Arduino devices using Clients interfaces e.g. WiFiClient, EthernetClient, and GSMClient.

The Hoa\Mail library.

End-to-end encrypted email for the mesh networking age

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

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.

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

Insular email distribution - mail server as Docker images

Eventum Issue Tracking System

small mail server

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

Fortran 2008 interface bindings to libcurl

Fake Protocol Server

Simple, modern & fast web-based email client

Run ProtonMail Bridge in a docker container

💌 Mail app for Nextcloud

Delta Chat Rust Core library, used by Android/iOS/desktop apps and bindings

mailcow: dockerized - 🐮 + 🐋 = 💕

Read and write email files (MSG, EML, MHTML), and compose, receive and send email messages using POP, IMAP, SMTP, and EWS in a simple and efficient way.

IMAP or SMTP honeypot written in Golang

Emails at the heart of your business logic!

Cypht: Lightweight Open Source webmail written in PHP and JavaScript

SMTP and IMAP checker / cracker for mailpass combolists with a user-friendly GUI, automated inbox test and many more features.

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

Self-hosted server for the ProtonMail client

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

Event-driven networking engine written in Python.

The magma server daemon, is an encrypted email system with support for SMTP, POP, IMAP, HTTP and MOLTEN,. Additional support for DMTP and DMAP is currently in active development.

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

VMime Mail Library

Official master for the Greenmail project

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.

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

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

The ISPDB, Thunderbird's database of mail configuration files.

Fullstack, security focused mailserver based on OpenSMTPD for OpenBSD using ansible

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

High performance, async IMAP client implementation

Object-Oriented Email Sending Java SDK

Backup GMail (or other IMAP) accounts to disk

Check if an email address exists without sending any email, written in Rust.

Check if an SMTP server accepts emails to a given address

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

A Python Mail Server

API to work with Gmail using IMAP built on top of Zend Imap Library

Next generation SMTP mailer plugin for WordPress. Trusted by over 100,000 sites.

TCP/UDP Applicaton for UNO/MEGA/STM32 using ESP8266's AT firmware.

Computer Networking : Principles, Protocols and Practice (first and second edition, third edition is being written on https://github.com/cnp3/ebook)

Local, web-based mail server application. Slurp mails into oblivion!

Sieve Script Editor