Email bounce back with rebooting server but messages have already been sent

I have many complaints from customers i support that when rebooting SBS 2003 servers the users get loads of NDR's from emails months before. not only that people will call asking why they are re-sending emails.

I have checked the queues before a reboot and dont see anything there.
All mail is being sent via a smarthost of the ISP. i can confirm mail transport is fine under normal daily working.

Hardware varies with Dell, HP and FS. Software is all Windows 2003 SBS R2 SP2 with exchange 2003 SP2. all customers also run Trend SMB V3.x and one customers runs GFI mail essentials latest build.
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Ideally, this would happen when emails are stuck within your SMTP Temp Tables.
You may want to message track those messages and check if these were sent from your Exchange.

If yes please delete SMTP Temp tables to avoid future problems.
smartit_richardAuthor Commented:
SMTP temp tables are new to me, where can i find them and how can i delete them?
Also if messages are stuck here is there any good reason for why this happens so often?

This does happen on every reboot of the servers
"SMTP temp tables are new to me, where can i find them and how can i delete them?"
Ref to the link below.

"Also if messages are stuck here is there any good reason for why this happens so often?"
It is not a good situation for emails to get stuck there - ideally the messages gets cleared when they are delivered to the recipient or when the message leaves the organization (sent to external recipients). When they get stuck (and Bill Gates knows why) - I simply do not investigate much and delete SMTP Temp tables - that's it.

Please read the following links to delete SMTP Temp Tables.!AFCCA5892B178862!717.entry

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smartit_richardAuthor Commented:
nice just what i was looking for.
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