AuMagic

Hello

I have -AUMagic appearing in Zone Alarm. At the moment, it's blocked. I did a search on forum and I think this is a virus. Please can you let me know how to rid it.

Please can you explain what the optionss "Server - Trusted and Internet and Send Mail" refer to. Mostly these are blocked except for MSN. I'm not sure when these should be Allowed, Blocked or Ask.