I just deployed a Exchnage 2007 and AOL email addresses are sitting in the que and not going out. They come back with several error messages such as : This message has not yet been delivered. Microsoft Exchange will continue to try delivering the message on your behalf. Delivery of this message will be attempted until 8/6/2008 1:00:37 PM (GMT-05:00) Eastern Time (US & Canada). Microsoft Exchange will notify you if the message can't be delivered by that time. They then come back with a error saying: Diagnostic information for administrators: Generating server: exchange2007.northernpharmacy.com ebsc3405@aol.com#550 4.4.7 QUEUE.Expired; message expired ## Original message headers:Received: from exchange2007.northernpharmacy.com ([192.168.1.171]) by exchange2007.northernpharmacy.com ([192.168.1.171]) with mapi; Tue, 29 Jul 2008 11:46:48 -0400From: brian Lichtig <blichtig@northernpharmacy.com>To: "'ebsc3405@aol.com'" <ebsc3405@aol.com>Disposition-Notification-To: brian Lichtig <blichtig@northernpharmacy.com>Return-Receipt-To: <blichtig@northernpharmacy.com>Date: Tue, 29 Jul 2008 11:46:47 -0400Subject: test from to your AolThread-Topic: test from to your AolThread-Index: AcjxklPVnNwsLzKuQHWP9eimQvnFpw==Message-ID: <BEFB13462C038048BD1C19F1AE0936FE193F0316AD@exchange2007.northernpharmacy.com>Accept-Language: en-USContent-Language: en-USX-MS-Has-Attach:X-MS-TNEF-Correlator:acceptlanguage: en-USContent-Type: multipart/alternative; boundary="_000_BEFB13462C038048BD1C19F1AE0936FE193F0316ADexchange2007n_"MIME-Version: 1.0 We host our on email under the domain northernpharmacy.com and have had all records checked with our DNS provider and internet provider. Any help would be appreciated.

Hi, AOL is the only problematic domain, right? First, I suggest using nslookup in your server to see if it can resolve MX record of AOL correctly. Using NSlookup.exe http://support.microsoft.com/?id=200525 Then please telnet the MX record of AOL. Type Ehlo to see if it is working well. XFOR: Telnet to Port 25 to Test SMTP Communication http://support.microsoft.com/?id=153119 After that, please check the queue status in Queue viewer and let me know the last error of queue. The following article maybe helpful for your self-troubleshooting: Advanced Exchange 2007 Transport Logs Troubleshooting using Log Parser - Part 1 http://msexchangeteam.com/archive/2007/11/12/447515.aspx Hope this helps and I await your response. Regards, Elvis