Outlook 2007: User sends mail and recipient receives two copies. What could cause this?

Question

Anytime a specific user sends an email too any other person, that person receives two copies of the email. What conditions could allow this to happen?

What kind of mail system? Exchange? Straight SMTP? – squillman Aug 06 '10 at 17:32 — squillman, Aug 06 '10 at 17:32

score 2 · Accepted Answer · answered Aug 06 '10 at 17:53

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This can happen if there are two copies of the OUTLOOK.EXE process running on the machine. Ending one of the processes will stop duplicate mail from being sent out.

answered Aug 06 '10 at 17:53

MattUebel

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score 1 · Answer 2 · answered Aug 06 '10 at 22:47

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Sounds like you already solved this but for future occurrences, it might also help to see headers.

answered Aug 06 '10 at 22:47

Mike B

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score 0 · Answer 3 · answered Aug 07 '10 at 00:14

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Outlook profiles crap out sometimes and give wacky results. Just a general Outlook/Exchange troubleshooting method. When having issues troubleshoot them in Outlook, try to reproduce them in OWA.

answered Aug 07 '10 at 00:14

PHLiGHT

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Outlook 2007: User sends mail and recipient receives two copies. What could cause this?

3 Answers3