Simscan is a user-friendly software that empowers qmail-smtpd to block email threats easily.
Its key features include the capability to run as a separate program under a different user than any other qmail program. This feature is vital, as it helps limit potential security risks. The program also has clamav virus scanning that prohibits emails that contain viruses, Trophie/TrendMicro virus scanning, support for spamassassin 3.0 and 2.6 series, and spamassassin scanning. Simscan also includes spamassassin hit level rejection, which allows you to stop emails that exceed a certain hit count.
Attachment blocking is yet another impressive feature of Simscan. The program comes with attachment blocking that helps block emails with attachments listed in a control file. Additionally, the program has fine-grained control of clamav/trophie/spamassassin/attachment blocking per user/per domain/per system.
Furthermore, Simscan has an impressively detailed logging feature that records the virus name, IP, and to/from addresses to the smtpd log file when a virus is detected. You can also use custom spamc arugments, add -u user@domain argument to spamc, and even add a received header which includes virus scanner and spamassassin version information.
Simscan works well with open source Clam AntiVirus by the Clam Team, open source trophie virus scanner interface to TrendMicro, open source SpamAssassin by the Apache Group, open source QMAILQUEUE patch by Bruce Guenter, and works with open source ripmime by Paul Daniels, and freely distributable Qmail by D. J. Bernstein.
In the latest Simscan release, the virus drop message now exits at the right time, avoiding potential errors. Additionally, the software uses per domain hit count on spam log message if set, and the temporary work directory now gets removed in case of a failed operation.
Overall, Simscan is a reliable, efficient, and easy-to-use program. Its free, open-source framework makes it a desirable program for many users. If you are tired of spam, viruses, and attachment-related issues, Simscan is an excellent software to try.
Version 1.1: N/A