Exim is a free, highly configurable, robust MTA (‘mailserver’) which enjoys widespread use by small and large organisations alike. I’ve built this page to provide some useful information about it; primarily in terms of content scanning for spam/viruses. Also see my post about checking maildir quotas.
Spam/Virus scanning with Exim 4.x
I’ve produced a mini “howto” summarily describing how to set up Exim 4.x to perform ‘realtime’ virus and spam scanning on incoming mails.
Currently, this guide covers Exim 4.50+, with SA-Exim 3.1+ and the Content Scanning Extension/Exiscan-ACL. Information about ‘original’ (non-ACL) Exiscan is no longer included, but you can download an older version which includes this below.
Comments/suggestions/corrections etc. are welcome – contact me.
- Spam and Virus Scanning with Exim 4.x/Exiscan and SA-Exim, Version 1.0.12 (12 Nov 2006) [PDF]
The last version which covers ‘original’ Exiscan:
- Old version of Spam and Virus Scanning with Exim 4.x/Exiscan and SA-Exim, Version 1.0.8 (5-Nov-2003) [PDF]
Exim course notes
I’ve had the pleasure of being a guest speaker at two Exim courses held at Cambridge University; the notes and slides are online.