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Do you have AV installed on the server? &nbsp;If so, the full name would help
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Do you have AV installed on the server?  If so, the full name would help

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Yes it's Symantec Mail Security for Exchange ver 5.0.6.368
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Yes it's Symantec Mail Security for Exchange ver 5.0.6.368

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Not really. I'll call Symantec though, I think we have a support contract. Thanks for your response. Will update the question with my progress.
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Not really. I'll call Symantec though, I think we have a support contract. Thanks for your response. Will update the question with my progress.

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Sorry for the delay. Thanks again for your help. I installed the latest version of Symantec Mail Security for Exchange and the problem seems to have cleared up.
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Sorry for the delay. Thanks again for your help. I installed the latest version of Symantec Mail Security for Exchange and the problem seems to have cleared up.

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In a domain environment, this problem affects at least 3 users when they send email. Periodically, when the user sends an email, multiple emails arrive at the destination. It's almost as if the sender clicked Send multiple times before message is actually sent.
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In a domain environment, this problem affects at least 3 users when they send email. Periodically, when the user sends an email, multiple emails arrive at the destination. It's almost as if the sender clicked Send multiple times before message is actually sent.

Several users periodically sending 2 to 5 copies of identical emails

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.