The anti-spam system subjects messages received to a certain number of tests. The message is considered to be spam if the total of points allocated in accordance with certain criteria exceeds a given threshold. The wording *****SPAM***** is inserted in the subject. This allows this type of message to be recognised and possibly for it to be classified or deleted automatically.

The anti-spam system acts as a filter whose net size can be controlled. As a general rule, a tight filter stops more spam but it can mark mail incorrectly (false positives). On the other hand, a wide filter reduces the number of false positives but detects less spam.

The anti-virus system automatically analyses the documents attached to incoming e-mails and thus protects electronic messaging against all known viruses. Infected attachments are automatically deleted. Infected messages are marked *****VIRUS***** in the subject line.