Optimizing MailScanner
Our MailScanner installation is pretty heavily utilised, scanning 20,000+ messages a day. I’m always looking for ways of improving it’s performance, so the following document has proved useful:
Optimization tips
Use a ramdisk (tmpfs) for MailScanner’s working directory.
Make sure you have enough ram
Set the noatime flag on your spool and log partitions
Use a local DNS caching [...]