What is happening is our exchange server will push some Email into the abyss and will not deliver them till we reboot the server. You can check the queues and it will show nothing and no NDR will be generated. Here is a screen shot from one that is hanging out in lala land. SMTP: Store Driver: Message Submitted from Store SMTP: Message Submitted to Advanced Queuing SMTP: Started message submission to advanced queue SMTP: Message submitted to categorizer SMTP: Message categorized and queued for routing SMTP: message routed and queued for remote delivery SMTP: Started outbound transfer of message Can anyone let me know if they have seen this before and how to fix it. Our configuration is 2003 Server Standard Edition SP2, Exchange Server 2003 Enterprise SP2. Thanks. D

Sory here is the missing part. SMTP: Store Driver: Message Submitted from Store SMTP: Message Submitted to Advanced Queuing SMTP: Started message submission to advanced queue SMTP: Message submitted to categorizer SMTP: Message categorized and queued for routing SMTP: message routed and queued for remote delivery SMTP: Started outbound transfer of message

Does SMTP temptable look clear? How to use the Mfcmapi.exe utility to view and work with messages in the SMTP TempTables in Exchange 2000 Server and in Exchange Server 2003 http://support.microsoft.com/kb/906557 Also you may try increasing diagnostic logging of Transport components... How to Configure Diagnostics Logging http://technet.microsoft.com/en-us/library/aa996402(EXCHG.65).aspx Best I can say to increaseProtocol Logging to see what Exchange is communicating at SMTP level... How to troubleshoot for Exchange Server 2003 transport issues http://support.microsoft.com/kb/821910 Amit Tank | MVP Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com

And to add on what Amit posted, have you applied the latest hotfixes?http://support.microsoft.com/kb/950757"E-mail senders do not receive an indication that some messages have been held by Exchange Server 2003 until the SMTP service, the Microsoft Exchange Information Store service, or the Exchange server is restarted"

Thanks to you both. The hot fix is very intriguing, but I checked last night and I am 40+ updates in the hole so I am doing that first. I will let you know how things go tonight.Thanks Again,Dan

Hi Dan,How things are going? Any update on this? Thanks

I have the exact problem as well. Just statred recently. I would copy and paste this is the exact issue I am having.

I am having the exact same issue. I am update on all my pathces on my 2x exchange servers. I am looking at http://support.microsoft.com/kb/950757/en-us and http://support.microsoft.com/kb/934709/en-us what do you think???