Dave... Check if your FQDN is resolving from your Exchange server. If it is resolving, check if you get alternate IPs of your DCs (If you have multiple DCs). Check if the DC mentioned in your Recipient update service is up and running, If so check if that DC is listed in the Nameserver tab in your DNS server. This seems to be a DNS issue and not an SMTP issue. Even I have faced a problem like this before in one of our organization. What happened was the administrators there have removed the DC (Which was being configured in RUS) from the nameserver tab since that DC did not have DNS service running and they would like to allow zone transfer for all nameserver's running DNS. It is mere stupidity.... Thanks, Mahadevan ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Dave stevens Sent: Tuesday, July 18, 2006 1:26 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Mails queuing, not been delivered All services are running, and we have tried disabling Mc Afee, but no joy. Mails just seem to get stuck in the queue. The only way to get some of them moving is to reboot the server. Even trying to restart the sntp service would throw the server into an unresponsive state. This is getting pretty dire, and I am not quite sure what the problem is. I have instructed a reinstallation of Exch 2003 sp2. From what I can see the smtp service is not working as smoothly as I would want. Just wondering if it corrupt? I just dont know. Brian Pituley <bpituley@xxxxxxxxxxxxxxxx> wrote: Are all your services running? What happens if you turn off McAfee? Brian Pituley Director of Information Technology T: 408-441-3611 F: 408-441-8405 E: bpituley@xxxxxxxxxxxxxxxx <mailto:bpituley@xxxxxxxxxxxxxxxx> ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Dave stevens Sent: Monday, July 17, 2006 3:25 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Mails queuing, not been delivered Hi Guys, Exchange 2003 sp2, windows 2003 sp1, MC Afee Groupshield 6.0. Mails are currently queuing up and not been delivered internally and externally. The mails are stuck in the pending submission queue, and ideas? Checked event log, and no specific id's. Please help Dave ________________________________ Groups are talking. We're listening. Check out the handy changes to Yahoo! Groups. <http://pa.yahoo.com/*http:/us.rd.yahoo.com/evt=41144/*http:/groups.yaho o.com/local/newemail.html> ________________________________ The information in this communication and any attachments is confidential and may be legally privileged. If you are not the intended recipient, any use, review, dissemination, distribution or copying of this information is strictly prohibited. If you have received this communication in error please notify us immediately and delete the original message and any copies of it. Any opinions, conclusions or other information in this message that do not relate to the official business of the company are neither given nor endorsed by the company. ________________________________ ________________________________ Groups are talking. We're listening. Check out the handy changes to Yahoo! Groups. <http://pa.yahoo.com/*http:/us.rd.yahoo.com/evt=41144/*http:/groups.yaho o.com/local/newemail.html> Confidentiality Statement: This message is intended only for the individual or entity to which it is addressed. It may contain privileged, confidential information which is exempt from disclosure under applicable laws. If you are not the intended recipient, please note that you are strictly prohibited from disseminating or distributing this information (other than to the intended recipient) or copying this information. If you have received this communication in error, please notify us immediately by return email.