What I've been doing is blocking IP's that have been sending us the emails and informing their admins and I also setup our virus software to block any emails that have the subject lines with Hi, Hello, Test, Error, File, Document, Message, Readme, Body Data, Doc, Server Report and Mail Delivery. -----Original Message----- From: Hermano JS. Queiroz [mailto:hjsqueiroz@xxxxxxxxxxxxxxxxxx] Sent: Thursday, January 29, 2004 1:16 PM To: [ExchangeList] Subject: [exchangelist] RE: MSExchange.org - Real-Time Article Update http://www.MSExchange.org/ I'm getting a bunch of undeliverable messages Hi, Hello, etc... I already scan the Server and all inbox and I didn't find any viruses. Actually some users open some files and the anti-virus catch them and delete it. Any suggestion of anything that I might still need to do? Thanks, Hermano