Do you have separate subnets for your back-end and front-end servers? If you do, can a computer on the front-end subnet talk to the computer on the back-end subnet?
Does your back-end computer only have a internal IP address? Back when I originally configured a front-end/back-end solution, I ran into a similar issue. Resolved it by creating TWO SMTP Virtual servers on the front-end server. One bound to the FE's external IP, and the other bound to the FE's internal IP. When a message comes in from the Internet, it hits the External SMTP Virtual server. Then it gets relayed to the Internal SMTP Virtual server (within the same front-end machine). Then the Internal SMTP Virtual Server has no problem giving the message to the back-end server on the internal subnet. Andrey Fyodorov Senior Exchange Administrator iNNERHOST http://www.innerhost.com -----Original Message----- From: Bravo, Liliana [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 26, 2002 2:34 PM To: Exchange Discussions Subject: Front-end & back-end Importance: High Hi MSX2000, SP2 We have one fornt-ened server and two back-end servers the mailboxes in the bak-end servers are not receiving email messages we have noticed that the front-end server build the queue up to the respective bak-end server but the message never arrives to the back-end but a NDR is received by the internet sender. If we check the details for those messages builiding up in the front-end the details say : mailloop misconfigured. Are we loosing any "a must" configuration to properly route messages front Front-end to back-end? note: messages sent from back-end mailboxes to internet are ok. Rgds, -er _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
