Classnotes | UNIX03 | RecentChanges | Preferences Procmail is like the swiss-army knife of e-mail server tools. It can be used to create mailing lists, filter incoming mail, preprocess mail, run any application upon mail arrival (even arrival from specific sources), or selectively forward incoming messages.
Procmail works by reading scripts and processing each message based upon a given script. These scripts can be set up on a per-user basis (usually, as a ~/.procmailrc file in a user's home directory) or system-wide (usually as a /etc/procmailrc).
Procmail is very versatile and very powerful. You may very well want to use Procmail in your network. However, for our activity today we will not be using it (as we will be using another utility for viral scanning that will perform Procmail's services for us, thus making Procmail redundant).