Discusses anti-spam philosophies from a variety of perspectives and provides information about available options for dealing with spam within qmail.

A qmail spam filter which uses statistical word analysis on incoming email.

Two scripts that allow content filtering on incoming email.

Setting up pop email accounts in qmail's Maildir format.

Advanced qmail distribution based on qmail-sql which has SMTP/ SMTPS/ POP3/ POP3S/ IMAP/ IMAPS services, antivirus and antispam filters, antispoof, SMTP-AUTH, SMTP-after-POP/IMAP, PHP5 API and many other useful tools.

An easy-to-use and high-speed mailing list manager. Includes installation instructions, manuals, FAQ, version tracking, and source downloads.

Provide commercial support of qmail and related mail services. Inter7 has supplied the needs of federal, state, global, and international operations along with small organizations.

Official home of the replacement for sendmail. Much content in several languages, including news, links, user documentation and software, tips, and advice.

A step-by-step guide to installing Qmail. Includes a complete shell script suite for configuring, compiling and installing Qmail and related Qmail utilities.

Various scripts and an article on the userless mail hub configuration.