On the recordRead 8 Oct 202614 facts
Exim
Plans and prices
Exim
Free
GNU General Public Licence · self-managed mail transfer agent
Read 8 Oct 2026 · exim.org
On the record
- Download verification
- Published source tarballs are cryptographically signed with OpenPGP, and signatures are distributed alongside them.exim.org · read 8 Oct 2026
- Filtering
- Users can use Sieve filters or Exim’s own filter language, which the manual describes as more powerful than Sieve.exim.org · read 8 Oct 2026
- Intended use
- The manual says Exim is designed for Internet mail transfer and that using it to send bulk unsolicited email conflicts with the project’s aims.exim.org · read 8 Oct 2026
- Mail routing
- Exim provides flexible facilities for routing mail and checking incoming mail.exim.org · read 8 Oct 2026
- Mail transport
- The implemented external transport mechanisms are SMTP and LMTP over TCP/IP, including IPv6.exim.org · read 8 Oct 2026
- Platform support
- The documentation lists configuration files for several operating systems, including Darwin (Mac OS X), FreeBSD, OpenBSD, Solaris, and GNU/Linux; it cautions that some older systems may no longer be testable.exim.org · read 8 Oct 2026
- Policy controls
- Access control lists can grant or deny access at points in the SMTP dialogue, including after recipient commands and at the end of a message.exim.org · read 8 Oct 2026
- Release signing
- The project says all releases receive a signed Git tag.exim.org · read 8 Oct 2026
- Scanning integrations
- When built with the content-scanning extension, Exim can pass messages to external virus or spam scanning software through its ACL mechanism.exim.org · read 8 Oct 2026
- Security updates
- The website identifies version 4.100.1 as a security release addressing four listed security issues.exim.org · read 8 Oct 2026
- Support and community
- The project provides announcement, development, and user mailing lists, including searchable archives for the user list.exim.org · read 8 Oct 2026
- Virus and spam scanning limit
- The manual says Exim’s basic incoming-message scanning is not comprehensive enough for full virus or spam scanning and recommends specialized additional software.exim.org · read 8 Oct 2026
- What it does
- Exim is a mail transfer agent for hosts running Unix or Unix-like operating systems.exim.org · read 8 Oct 2026
- Windows support
- Configuration files exist for compiling Exim in the Cygwin environment on Windows, but the manual does not explain running Exim there.exim.org · read 8 Oct 2026
