Keep receiving duplicate emails every 5 minutes

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Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange


Are you scanning email with Norton? Disable that feature.

Do you get duplicates when you use Safe mode? (Hold Ctrl as you click on the Outlook icon to start in Safe mode.)

How often are you checking for mail and how many messages are new each time? Try raising the check every xx minutes limit to 15 min.
 
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