Setup impersonation of the mailbox you will be administering i.e. Need to configure Office 365 connection to Office - Opens a new windowĦ. Need to install PackageManagement PowerShell Modules Preview - March 2016ĥ. Need to install Microsoft Online Services Sign-In Assistant for IT Professionals RTWĤ. Need to make sure to have Microsoft Exchange Web Services Managed API 2.2 installedģ. Have to have version 5 of PowerShell installedĢ.

What I found from working out the script is as follows:ġ. Here's the link to the script - Opens a new window Hopefully this will be of help to someone here.įirst off, credit to Michel for making the script Opens a new window Hours and hours of time went in to finding a solution but, here's what I found worked for me. I know it is possible using Outlook Client, but since I'm a Linux user I don't have the client.Recently ran across a situation where I had a user's mailbox that had tons and tons of duplicate emails, calendar appointments, etc associated to their mailbox. Manually finding and deleting duplicate emails will take a long time as there are thousands of emails.

It would be great if I can delete the duplicate emails from this folder.

I also have manually moved all the existing emails into that folder, since OWA doesn't support running a rule on existing emails.Īfter that when I was checking older emails in that folder I have found that there are duplicate emails and then I remember the settings I did when I was using Gmail. Unfortunately, I had forgotten that the filter that I had before was keeping a copy of emails of that folder in Inbox and I created a new Rule in OWA for all future emails to move into this folder and NOT keeping anything in Inbox. When I was using Gmail I had a filter by which I was moving emails from a particular account to a folder and also keeping a copy in the Inbox.Īfter the migration to Office 365, the folder where the emails were moved was migrated as well. We are using Office 365 and prior to this, we used Gmail.

How to delete duplicates in outlook