Package: wnpp Severity: wishlist Qsmtp is a drop in replacement for the qmail SMTP programs qmail-smtpd and qmail-remote. That means you just change your startup scripts to use Qsmtpd instead of qmail-smtpd and most things will work as before.
The initial point was a heavily patched qmail-smtpd to get some decent
antispam features. This was then rewritten from scratch into a new
binary that was designed to allow easy extension to new mail filters.
Another design goal was to be 100% IPv6 clean.
• Fast and small: written in plain C
• IPv6 clean
• Many antispam modules included, e.g. SPF, IP blacklists, domain
blacklists, badmailfrom, helo filtering
• Easy API to add your own spamfilters
• For vpopmail hosts: does not create bounces for non-existing users
• Tested: includes unit tests, nightly checks available
at http://my.cdash.org/index.php?project=Qsmtp
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