You can check the message header and figure out from which host the virus mail is originating and isolate that host. This is possible in Sendmail environment but i am not sure whether Exchange gives message header details. I tried sent a mail from one mailbox to other in the same Exchange organization but i am unable to see message header.. Probably some one can let us know how to enable this on Echange .. Regards Praveen R NGUYEN HONG HA <HANH.EVNIT@xxxxxxxxxx> wrote: http://www.MSExchange.org/ Hi everybody, There are about 10 Exchange 5.5 servers in my organizations. I use Site connector to connect them. Now one of my client has virus and it automatically send e-mail to all clients. Our anti-virus program cannot delete these e-mails. How can I filter these e-mails ? It's very urgent. Thank you very much. Ha. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: ramaswamy_praveen@xxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx --------------------------------- Do you Yahoo!? Make Yahoo! your home page