Anti Spam

Black List / White List
Inside the default spam detection engine the user can additionally define its own lists of either definitely wanted (White List) or definitely unwanted (Black List) mail addresses or mail domains. So regardless of whether the mail is classified as spam or not, the mail will be blocked (in case the sender address or domain is defined inside the Black List) or accepted (in case the sender address or domain is defined inside the White List).

Mime Header Check
To identify spam mails the mime headers are also checked.

RBL, ORDB
For spam detection and classification UTM includes Realtime Blackhole Lists (RBL) and Open Relay Databases (ORDB) in its Spam rating. If e.g. an email is coming from a well known Spam server or an open relay server (server that was hacked and is misused from spammers) the Spam rating will go up.

*Optional CommTouch Spam detection engine: The spam detection engine can be optionally supplemented to the CommTouch scan engine.This is an extra option for Netsafe UTM users. CommTouch is a market leader in Spam detection and well known for its very advanced scan technologies (fast) and its very good quality of detection (high detection rates with minimum false positives). More info on CommTouch and their advanced Spam detection technologies can be found at http://www.commtouch.com.

Automatic Update
The spam detection database is updated automatically in real-time.