The flow of SPAM (unsolicited e-mail) targeting CERN mailboxes is constantly increasing: about 96% of the 1.5 million mails received daily at CERN is successfully filtered SPAM, but spammers are getting smarter and detecting it is becoming ever more difficult.

To address this evolution, a new SPAM-detection software engine will be deployed. The aim is to decrease the number of SPAM messages that are delivered to your inboxes and SPAM folders.

Users can notify the Mail Service about SPAM messages by attaching the SPAM message as described here:

To configure the spam filtering level for your CERN mailbox, go to: and click on "SPAM fight".

Thank you for your collaboration.