Do you have an SMTP connector defining where outgoing email should flow? Were the NICs on the same network, or different networks? Who had the default gateway and who didn't? (If both did, then stop diagnosis right there...) All of my Exchange servers have at least two NICs (a public facing NIC and a backup-network NIC). No problems whatsoever. -----Original Message----- From: Kern, Tom [mailto:tkern@xxxxxxxxxxx] Sent: Tuesday, July 26, 2005 12:10 PM To: [ExchangeList] Subject: [exchangelist] why would this happen/ http://www.MSExchange.org/ I set up an exchange 2k3 server. it had 2 nics. one had a static addy, the other was dhcp(it got all the dns info from dhcp as well). the dhcp lease was set for 3 days In this setup, mail was stuck in the queues for hours. sometimes days, but eventually delivered. the moment i disabled the dhcp nic, mail started flowing normally. any idea why 2 nics(or dhcp) would cause this? i never saw any MS kb's about mlti homed exchange being a bad idea OR dhcp. thanks ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: michael@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx