We had an issue today where Gmail was duplicating e-mails in the sent folder of Outlook and Gmail. Resolution: Check the box “Do Not Save Copies of Sent Items” in Outlook. Found a great article on duplication of e-mails with Outlook and G Suite today at http://www.pstrepairtool.org/blog/prevent-duplicate-sent-items-gmail-outlook.html. We were able to solve the issue with the top information. Outlook seems to be saving the e-mail in the sent folder, then syncing the…
How to Stop Duplicate Sent E-Mail Items in Outlook with Gmail or G Suite
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