How could the problem not be with the communication between 5.5 and mailsweeper? Are you not using mailsweeper as your smarthost for external communication? Do you have a firewall between 5.5 and mailsweeper? What's the routing topology? Al -----Original Message----- From: Kulwinder Jutla [mailto:Kulwinder@xxxxxxxxx] Sent: Wednesday, April 13, 2005 10:19 AM To: [ExchangeList] Subject: [exchangelist] Host Unreachable error on Exchange5.5 http://www.MSExchange.org/ We are running exchange5.5 with SP4, we use mailsweeper4.3 as our SMTP gateway. sometimes on certain emails with attachments, the emails queue up in the outbound queue on the IMS with the decription "Host unreachable", I tried to hotmail.com and other domains using the same email message and got the same error. the message doesnt even seems to be to mailsweeper, so not sure whats the problem with these certain emails. can anyone advice ? ------------------------------------------------------ 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: al.mulnick@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx
