Spam

As spam (unsollicited email) is getting worse every day, we provide a way to filter your incoming mail messages.

Create a file named .procmailrc with a text editor. If you only want to tag spam messages (so you'd let your email client filter the messages), enter
:0fw
| /usr/local/bin/spamkill-wrapper

Messages recognized as spam will have a header X-Spam-Status: Yes.
If you want those message to go in a separate mailbox, enter
:0fw
| /usr/local/bin/spamkill-wrapper

:0:
* ^X-Spam-Status: Yes
mail/spam
where mail/spam is mailbox (relative to you home directory) all spam will go to.
SpamAssassin (the software we use) offers much more functionality like whitelists, blacklists and bayesian learning. Check man spamassassin if you want to know more.