5.5 does not revert to using A records if there is not an mx record present. There is not an mx record for helix.mgh.harvard.edu which is why the mail is sitting in the queue.
-----Original Message----- From: Majetic, John RAME [mailto:[EMAIL PROTECTED]] Sent: Monday, May 13, 2002 10:47 AM To: MS-Exchange Admin Issues Subject: RE: Email sitting in the queues and NDR's being generated Well doing a telnet helix.mgh.harvard.edu 25 at the dos prompt, does return a 220 message from a sendmail box. However it takes about 30 seconds for that message to come up. It seems way to long to me. I think your server may be timing out waiting for their server to respond with the 220 message. I have looked but cannot see if there is such a time out. Does anyone else know? You could also telnet to there server, and test the connection using the directions in Q153119 to see if the are receiving correctly. Just put something in the message asking the person to respond to your test message. I think it is a problem with their server as well, but will reserve judgment, until after you follow the Q153119 directions to see if you can even send to that box. John Majetic -----Original Message----- From: Dave Vantine [mailto:[EMAIL PROTECTED]] Sent: Monday, May 13, 2002 1:26 PM To: MS-Exchange Admin Issues Subject: RE: Email sitting in the queues and NDR's being generated That consultant also happens to be one of the owners and Oh Well does not cut it -----Original Message----- From: Martin Blackstone [mailto:[EMAIL PROTECTED]] Sent: Monday, May 13, 2002 1:11 PM To: MS-Exchange Admin Issues Subject: RE: Email sitting in the queues and NDR's being generated I think my reply to the consultant would be "Oh well". Sounds like you have put more than enough work into getting just one mail addy to work. -----Original Message----- From: Dave Vantine [mailto:[EMAIL PROTECTED]] Sent: Monday, May 13, 2002 10:09 AM To: MS-Exchange Admin Issues Subject: Email sitting in the queues and NDR's being generated Exchange 5.5 Sp4 W2k Sp2. One of our consultants is trying to send an email to [EMAIL PROTECTED] This just sits in the queue and throws back NDR's at the specified intervals until it finally gives up trying. I used the interactive DNS MX-verify CGI available at zmailer.org. The first portion returns the following: Doing resolver lookup for T=MX domain=``helix.mgh.harvard.edu'' Questionable: NO MX DATA: domain=``helix.mgh.harvard.edu'' We SIMULATE! Do have at least one MX entry added! It does however connect and returns an 'OK'. When I run the Exchange utility restest.exe I get and error, "an error occurred while trying to resolve IP address for helix.mgh.harvard.edu. This message would have been queued for another delivery attempt later. Check your DNS configuration and make sure your DNS servers are running". The DNS server is running on a different W2K server on my network and it has forwarders set to my external DNS servers. My Exchange server is setup to use this W2K internal DNS server. If I run nslookup from my Exchange server it correctly connects to that server and if I lookup "helix.mgh.harvard.edu." and returns the same IP address that is returned by the Interactive DNS test connection. It is only email address sitting in the outbound queue at present so it is unclear whether other addresses are failing. I do not believe the problem is on my end but wanted see if any of the Exchange experts had any ideas. Thanks -Dave Vantine List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm
