simscan

Simscan is a simple program that enables the qmail smtpd service to reject viruses, spam, and block attachments during the SMTP conversation so the processing load on the email system is kept to a minimum. The project is open source and uses other open source components. Small, very efficient and written in C.

Documentation

• Mailing list: support and discussion: simscan-subscribe@inter7.com
• Mailing list Archive
• Simscan Documentation (Qmail Wiki)
• Source Code Change History (ChangeLog)
• simscan.c primary C code

News

Simscan now available on Source Forge - November 1, 2007
The simscan development team is now using the helpful services at source forge to maintain download files and manage new versions using the version control system. http://sourceforge.net/projects/simscan/

New Production Version 1.4.0 Released - October 29, 2007
Download lastest 1.4.0 production version here. Version 1.4.0 is a very well tested production version that adds support for DSPAM.

Features

• Runs as a separate program under a separate user than any other qmail program to limit possible security problems.
• clamav virus scanning ( --enable-clamav (default yes ) ). Rejects email containing viruses.
• trophie/TrendMicro virus scanning.
• support for spamassassin 3.0 and 2.6 series.
• support for DSpam
• spamassassin scanning ( --enable-spam (default no ) ). Rejects email that has X-Spam-Flag: YES set.
• spamassassin hit level rejection ( --enable-spam-hits (default 10.0 ) ). Requires --enable-spam to be enabled. Allows for rejection of email above a certain hit count. All other email is passed through with spamassassin headers and changes.
• attachment blocking ( --enable-attach (default no ) ). Blocks emails with attachments listed in a control file.
• fine grained control of clamav/trophie/spamassassin/attachment blocking per user/per domain/per system. ( --enable-per-domain (default no))
• logging of virus name, IP and to/from addresses to smtpd log file when a virus is detected.
• configuration option to set custom spamc arugments --enable-spamc-args
• configuration option to add -u user@domain argument to spamc --enable-spamc-user
• received header which includes virus scanner and spamassassin version information

Works with these open source programs

• DSPAM.
• Clam AntiVirus by the Clam Team.
• trophie virus scanner interface to TrendMicro.
• SpamAssassin by the Apache Group.
• QMAILQUEUE patch by Bruce Guenter.
• ripmime by Paul Daniels.
• freely distributable Qmail by D. J. Bernstien.