One of my users has reported an unusual problem. Twice, when one of his friends (outside our organisation) has sent him an email, it has been delivered to his Inbox repeatedly (every two or three hours), over the course of the next day or two, up to about 15 times. The friend has sent the email only once and other recipients of the email outside our organisation have received it only once. The "time sent" on each repeated email is identical to the original email. I've checked the Message Tracking Centre and it has only been delivered to us once, but it is being delivered repeatedly to his mailbox. Any ideas? We use Exchange Server 2003 Standard SP2 on Windows Server 2003 Standard SP2, with50 clients running XP SP2 and Outlook 2003 in cached exchange mode.

Hi, First of all, Did you check "sent mailbox" of sender who is out of your org. ? I'm wondering how many emails there are. and Please check virus on recepient's computer. let me know the result. :-) -MG

Can you clarify the first part - what do you mean by 'check "sent mailbox" of sender who is out of your org'?

Basically If someone sent the email, then that email is also in sender's "sent mailbox" folder. So I was wondering if there are emails on that folder or not. Clear?? But mainly this may be related to virus based on my experiences. -MG

I can't tell youwith 100% certainty that the sender has this email in his Sent Items (he's outside our company, so how can I?), but I can tell you that it was sent to three recipients, one of whom is in my company. The other two recipients received it only once, the person here has received it 24 times in the last three days. If I look in Message Tracking Center, I see this repeatedly, at intervals of a few hours: 17/01/2008 07:49 SMTP: Message Submitted to Advanced Queueing17/01/2008 07:49 SMTP: Started Message Submission to Advanced Queue17/01/2008 07:49 SMTP: Message Submitted to Categorizer17/01/2008 07:49 SMTP: Message Categorized and Queued for Routing17/01/2008 07:49 SMTP: Message Queued for Local Delivery17/01/2008 07:49 SMTP: Message Delivered Locally to RECIPIENT17/01/2008 07:49 SMTP Store Driver: Message Delivered Locally to Store to RECIPIENT I'll run a virus scan as suggested.

Virus scan done - nothing found.

hmmm... Then you can check the EML header information. So confirm that all the message's message-id. ( same or different ) and you can also check the SMTP log. if possible, please attach the SMTP Log. I think we have to clarify that where the problematic starting point is. -MG

The message ID is always the same. SMTP log - can you advise which advanced options I need to check?

If you want to gather smtp log, then you have to check option that makes it happen. So you check "enable logging" setting under protocol->smtp virtual server->general properties. and you can alsoconfirm where the smtp-logswill bevia "property" on general tab. After gathering log file, you can check how many times external smtp domain tried to connect to your server. Good luck~!!! -MG

I am experiencing the exact sameissue on my Exchange 2003 server. Via Message Tracking Center, I see that the external message is received only once, but Exchange is processing the message repeatedly. Since the message is not purged from the queue, it is delivered locally to my user every 60 minutes. Were you able to find a resultion to this problem?

I'm afraid not, no. It just went away in the end, after a week or so. It hasn't happened again. Really frustrating, though, not knowing what caused it.

I am having this same exact problem as well. Wierd.