Usually for time differences or other identifiers which could indicate a
unique new email being send. A common issue on the sender side is that it
hangs in an outgoing mail virus scan and gets send multiple times.

--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

http://www.msoutlook.info/
Real World Questions, Real World Answers

-----

"John" wrote in message
...
What am I looking in header? Thanks

Regards

"Roady [MVP]" t wrote
in message ...
Plenty of things. Could even be sender side. If it shows up twice in OWA
it is probably a sender related issue. Check the header info for more
details.

--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

http://www.msoutlook.info/
Real World Questions, Real World Answers

-----

"John" wrote in message
...
Hi

outlook 2003 with exchange 2003. Once in a while a user receives two
copies off an email. What could be the problem?

Many Thanks

Regards