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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Tag: email
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 – configurable mail transfer agent
Sendmail is a configurable mail transfer agent with flexible routing, SMTP authentication, TLS, policy controls and mail filtering.
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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 server focused on simplicity and security
chasquid is an SMTP mail server for smaller installations, with virtual domains, secure transport, address aliases, monitoring, and filters.
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Citadel – email and groupware server
Citadel is an email and groupware server with SMTP, IMAP, POP3, calendars, contacts, web access, mailing lists and collaboration tools.
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Dovecot – secure IMAP and POP3 server
Dovecot is a secure, high-performance IMAP and POP3 server with authentication, mailbox indexing, Sieve filtering and flexible storage.
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Cyrus IMAP – email, contacts and calendar server
Cyrus IMAP is a scalable email, contacts and calendar server with IMAP, JMAP, CalDAV, CardDAV, replication, quotas and access controls.
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Courier – integrated mail and groupware server
Courier is an integrated mail server providing ESMTP, IMAP, POP3, webmail, mailing lists, authentication and Maildir-based message storage.
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Postfix – secure and widely deployed mail transfer agent
Postfix is a secure and widely deployed mail transfer agent with flexible routing, TLS, SMTP authentication, filtering and policy controls.
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Zimbra – email and collaboration server
Zimbra is a collaboration server combining email, calendars, contacts, webmail and administration with open source components.
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DBMail – scalable database-backed email server
DBMail stores email and account data in SQL databases, providing scalable IMAP, POP3 and LMTP services without filesystem mailboxes.
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OpenSMTPD – secure and lightweight SMTP server
OpenSMTPD is a secure and lightweight SMTP server with simple configuration, local delivery, relaying, filtering and authentication support.
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Exim – configurable mail transfer agent
Exim is a configurable mail transfer agent with flexible routing, ACL-based policy controls, authentication, TLS and content scanning.
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Cone – COnsole Newsreader And Emailer
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 – Vim interface to Gmail
Vmail is a Vim interface to Gmail. Vmail uses Vim autocompletion to help you auto-complete email addresses.
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Wanderlust – mail / news reader
Wanderlust is a mail/news management system with IMAP4rev1 support for Emacs. Wanderlust is free and open source software.
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aerc – email client that runs in your terminal
aerc is an email client for your terminal. aerc optionally supports notmuch. The program is free and open source.
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alot – terminal-based mail user agent based on the notmuch mail indexer
alot is a terminal-based mail user agent based on the notmuch mail indexer. alot is free and open source software.
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