1024 Open source projects that are alternatives of or similar to Opaquemail

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

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

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.

Send encrypted PGP messages with one click

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

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

⚡️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.

A secure and PGP enabled webmail module for Phosphorus Five

Postfix filter/hook to automatically encrypt outgoing emails with PGP/GPG

Email-based instant messaging for Desktop.

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

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

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

VMime Mail Library

Insular email distribution - mail server as Docker images

Command-line interface for email management

No description or website provided.

The complete and secured Mail Client for ESP32, sending and reading the E-mail through the SMTP and IMAP servers.

A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

An unofficial desktop client for ProtonMail done with electron nativefier

🔐 A free, light and easy to use desktop tool to generate PGP key pairs, encrypt and decrypt messages.

a easy solution for simple IMAP email access in php

IOStreams is an incredibly powerful streaming library that makes changes to file formats, compression, encryption, or storage mechanism transparent to the application.

Delta.Chat C-Library with e2e chat-over-email functionality & Python bindings

🔑🔥📈 Next Level PGP

Tutanota is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

A throwaway smtp server with API

Poste.io plugin for Dokku

Collaborative open-source successor to qmail

Easily send great-looking HTML email messages from R

The DIME resolver library and command line utilities.

InBrief is a personal briefing app and dashboard powered by Electron and React

Run ProtonMail Bridge in a docker container

Very crude and poorly written HTTP(s) and SMTP bin

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

A cross-platform IMAP library for .NET, supporting .Net 2.0 - 4.5, Mono and Windows Phone

The classic email sending library for PHP

Simple, modern & fast web-based email client

Configure Magento 2 to send email using Google App, Gmail, Amazon Simple Email Service (SES), Microsoft Office365 and many other SMTP (Simple Mail Transfer Protocol) servers

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

mailcow: dockerized - 🐮 + 🐋 = 💕

Sending HTML email using Go 💌

Self-hosted server for the ProtonMail client

A Python Mail Server

Emails at the heart of your business logic!

Sieve Script Editor

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

Encrypted personal archives

OpenPGP library for iOS and macOS

Exim Mail Transport Agent - source, testsuite and documentation

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

Object-oriented, fully tested PHP IMAP library

Event-driven networking engine written in Python.

💌 Mail app for Nextcloud

Cypht: Lightweight Open Source webmail written in PHP and JavaScript

a mailer library for Rust

High performance, async IMAP client implementation

Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

Anonymous email forwarding

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