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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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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Postfix is a free and open source mail transfer agent (MTA), a computer program for the routing and delivery of email.
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Zimbra Collaboration Suite (ZCS) is a groupware product developed by Zimbra Inc. Zimbra consists of both client and server components.
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DBmail is the name of a group of programs that enable the possibility of storing and retrieving mail messages from a database.
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OpenSMTPD is an implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions.
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Exim is an open source mail transfer agent (MTA), which is software responsible for receiving, routing, and delivering e-mail messages.
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Cone stands for “console newsreader and emailer. Cone is a text-based mail client, which seamlessly handles multiple POP3, IMAP accounts.
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Vmail is a Vim interface to Gmail. Vmail uses Vim autocompletion to help you auto-complete email addresses.
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Wanderlust is a mail/news management system with IMAP4rev1 support for Emacs. Wanderlust is free and open source software.
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aerc is an email client for your terminal. aerc optionally supports notmuch. The program is free and open source.
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