Could be a DNS problem. Is your AD DNS server using root hints or forwarders? I had an issue a while ago where my SMTP servers stopped sending mail. It started happening soon after we changed our AD DNS servers from using forwarders to using root hints. It turned out that MS AD DNS was not fully compatible with BIND 9. Whenever it received a packet from a BIND 9 root hint, it did not fully understand it but still cached it. Eventually, the DNS server was not able to tell SMTP servers how to send mail. We had to go back to using forwarders (our BIND 8 DNS servers).
Also, do you have DNS Client service running on your SMTP servers? You might want to disable it. Sincerely, Andrey Fyodorov, Exchange MVP Systems Engineer Messaging and Collaboration Spherion -----Original Message----- From: Matthew Joyce [mailto:[EMAIL PROTECTED] Sent: Sunday, January 11, 2004 6:59 PM To: Exchange Discussions Subject: RE: smtp receives but stops sending It's happened again, Monday moning and the queue is filling up and not moving out of 'waiting for submission'. I went throught proceadure again but ten minutes later and the messages are building up again. I'm temped to uninstall the AV software and to see what happens. Every one has av on there machines so I do not think the rick of virus is too much. I have to sort this out, I cannot have a new mail system which does not deliver mail. Any advise please ? Matt -- > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ed > Crowley [MVP] > Sent: Friday, 9 January 2004 3:42 AM > To: Exchange Discussions > Subject: RE: smtp receives but stops sending > > > The poster, as is often the case, didn't respond with what > fixed the problem. > > Ed Crowley MCSE+Internet MVP > Freelance E-Mail Philosopher > Protecting the world from PSTs and Bricked Backups!T > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Matthew Joyce > Sent: Wednesday, January 07, 2004 5:28 PM > To: Exchange Discussions > Subject: smtp receives but stops sending > > > Hi, > > I found a thread, titled as above, via a google, I'm just > curious what the resolution was (if any) > > I have recently install Exchange 2003 and today, I found a > bunch of messages waiting for submission. The SMTP service > would not stop. > > I followed the threads procedure. > > Disable SMTP service > Restart server > Move messages from queue > Start service > feed back messages > > this seems to have worked, but the whole incident has spawned > a constant niggling doubt. > > I have not done anything to change the setup, so presumably > this can happen again anytime. > > There was talk of it being AV related, I have a trial of GFI > Mail Security running, I'd like to be able to know if it is > the AV product or a generic problem with the AV/Exchange interface. > > Any ideas ? > > > Thanks > > > > Matt > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
