1184 Open source projects that are alternatives of or similar to Docker Mailserver

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

mailcow: dockerized - 🐮 + 🐋 = 💕

Insular email distribution - mail server as Docker images

Software to provision a mail server with users from a Windows or Samba 4 Active Directory

Ansible playbooks to deploy a full featured mail server stack using Docker.

Skirnir Email Server

a collection of LDAP mail schemas

Poste.io plugin for Dokku

Simple and full-featured mail server using Docker

bruteforcing gmail (TLS/SSL)

Simple, modern & fast web-based email client

Apache Guacamole installation bash script for RHEL 7 and CentOS 7 including options for Nginx, HTTPS, SSL, LDAP, Let's Encrypt certificates and more

✉️ Composable all-in-one mail server.

Event-driven networking engine written in Python.

Self-hosted server for the ProtonMail client

⚡️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.

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

small 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.

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

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

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

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

Hermes Secure Email Gateway is a Free Open Source Ubuntu 18.04 or 20.04 Server based Email Gateway that provides Spam, Virus and Malware protection, full in-transit and at-rest email encryption as well as email archiving. It features the latest email authentication techniques such as SPF, DKIM and DMARC.

Emails at the heart of your business logic!

The Hoa\Mail library.

MySB (MySeedBox) is more than a simplified installation script of a multi-users Seedbox. There are many solutions to install a Seedbox, but we never talk about safety and regular operations. MySB could be renamed MySSB (MySecuredSeedBox).

asynchronous library for sending and receiving mail via fs2._

milter manager is a free software to protect you from spam mails and virus mails effectively with milter.

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

Automatically create and renew website certificates for free using the Let's Encrypt certificate authority.

基于 Net.Mail 封装的发送邮件工具类。仅需一行代码，发送邮件。支持自定义邮件发出邮箱、发出方名字等。 支持SSL加密发送。 多个接收人、抄送人。支持群发独显。 支持添加附件、多个附件。 目前大部分主流邮箱全支持。

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

'DANE for SMTP' wiki

All in one Docker Compose media server

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

A lightweight SMTP mail library

Run ProtonMail Bridge in a docker container

A simple Python script that reads a text file with lots of e-mails and passwords, and tries to check if those credentials are valid by trying to login on IMAP servers.

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

API Gateway custom domains as CloudFormation resources, backed by Let's Encrypt

Automated ACME SSL certificate generation for nginx-proxy

Command-line interface for email management

ACME certificate protocol (Let's Encrypt) proxy client with a dashboard and monitoring

Fake SMTP server that prints emails to stdout

Automatic wildcard certificate management for Cloudflare and Heroku

Dynamic reverse proxy based on NGINX OpenResty with an API

Automated ACME SSL certificate generation for nginx-proxy

PHP client library for Let's Encrypt (ACME v2 - RFC 8555)

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

Simple and easy to use catch-all SMTP mail server and debugging tool

Dockerized HAProxy with Let's Encrypt certificates automatic renewal

Probably the easiest way to create | renew | deploy certificate

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

A set of ansible scripts to build a personal mail server / private cloud / etc.

Let's Encrypt / ACME client written in PHP for the CLI.

A client implementation for the Automated Certificate Management Environment (ACME) protocol

Zmail makes it easier to send and retrieve emails in python3

High performance, minimalist Go web framework

📤 An SMTP client & server library written in Go