Spam filtering

The University filters a great deal of spam sent to ANU email addresses.

Spam filtering is done by looking at the content of the message and scoring it against a set of rules. Each rule is worth a number of points and at the end of scanning the message, the system simply adds up the number of points that a particular message has scored. The more points a message scores the more likely it is going to be spam. Both the content of the message and the formatting and other characteristics are used when classifying.

When is it spam?

Messages with more than a 50% likelihood of being spam are rejected.

The ANU Quarantine service allows users to see which messages have been filtered, and allows the user to whitelist or blacklist particular e-mail addresses.

http://quarantine.anu.edu.au