CanIt-Pro uses many sophisticated rules and mechanisms to detect spam.
All scanning is done by the CanIt-Pro software. There is no human intervention.
Spam scanning is not 100% effective. Some unwanted spam messages may be delivered to you, and some legitimate messages may be identified as spam and rejected. If you consistently receive spam from a specific source, set up a personal block list. Likewise, if you have a specific sender or domain that you want to ensure will never be blocked, set up a personal permit list. You can also use the advanced controls with Spam Trap.
Currently all messages sent to GroupWise mailboxes are scanned for viruses and spam. Departmental e-mail servers do not currently participate in enterprise spam scanning. Check with your department for options on their servers.