Here’s our verdict on free and open source email servers. We recommend Exim, OpenSMTPD, mox, DBMail, and WildDuck.
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Tag: email
Delta Chat – messaging software that works with e-mail
Delta Chat is a chat app that sends messages via e-mails, encrypted if possible, with Autocrypt.
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iRedMail – mail server solution
iRedMail is a full-featured mail server solution based on Postfix and Dovecot.
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getmail – mail retrieval system
getmail is a mail retriever designed to allow you to get your mail from one or more mail accounts on various mail servers to your local machine.
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Postfix Admin
Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases.
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Postgrey – Postfix Greylisting Policy Server
Postgrey is a Postfix policy server implementing greylisting. Greylisting is a method of blocking significant amounts of spam at the mailserver level.
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SpamBayes – fight spam with this Python tool
SpamBayes is a Bayesian anti-spam classifier written in Python. SpamBayes is a tool used to segregate unwanted mail (spam) from the mail you want (ham).
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Horde Groupware – enterprise ready, browser based collaboration suite
Horde Groupware is an enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes.
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Sendmail – Mail Transport Agent
Sendmail is a Mail Transport Agent (MTA). It is suitable for handling sophisticated mail configurations, but this means that configuration can be complex.
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qmail – modern SMTP server
qmail is an Internet Mail Transfer Agent (MTA). It was written as a more secure replacement for the popular Sendmail program.
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chasquid – SMTP (email) server with a focus on simplicity
chasquid is an SMTP (email) server with a focus on simplicity, security, and ease of operation. chasquid is free and open source software.
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Citadel – groupware software
Citadel/UX (commonly known as Citadel) is an open source, complete and feature-rich collaboration suite (messaging and groupware).
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Dovecot – IMAP and POP3 email server
Dovecot is a mail server whose major goals are security and extreme reliability. It seeks to handle all error conditions and verify that all data is valid.
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Cyrus IMAP – email, contacts and calendar server
Cyrus IMAP is an email, contacts and calendar server intended to be run on a “sealed” server.
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Courier Mail Server – mail transfer agent
The Courier mail transfer agent is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP.
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