Alex Alex wrote:

I am missing all of my sent items except the previous days. I checked
my view settings and the emails have not been deleted. I checked for
any archive files and found nothing. My recover deleted items is also
empty. I did a search in my mailbox and could not find any of the
emails - any suggestions on what happened? I am running Outlook 2003
sp3 on Exchange. Thanks.

Try resetting the view you're using on the Sent Items folder to its default.
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Brian Tillman