About 10 days ago, Outlook got 6 messages from the same sender.
Every time Outlook does a send receive, whether manually or automatically (timed),
the same messages with same content and timestamp re-appear in the inbox.
(Of course, I set up a filter to place them in the deleted folder, and at the
end of the day, empty the folder).
One of the Emails had an Word attachment.
Scanning with a couple antivirals (NOD32, Norton) does not show any trojans
or other infection, Spybot S&D and Ad-Aware show no problems.
I am not using Exchange Server.
The messages are not on the POP server.
If ethernet wire is unplugged, the messages don't appear (of course,
a real send/receive cycle doesn't happen either).
The sender is a regular correspondent, and is experiencing
no problems on his end. Subsequent emails from him
exhibit the same behavior. His emails to other organizations
don't exhibit the behavior.
I send the messages to my home computer, which is
configured somewhat differently, but in Outlook 2000, the problem
does not occur. I can send samples of the messages for analysis.
Looking at the SMTP headers and text doesn't show me
any problems - but I'm not an expert.
Email from other senders comes in just fine.
No error messages occur.