Disable automatic forwarding in Office 365 and Exchange Server to prevent information leakage

This article is describing a brief guide on how to prevent internal users from auto-forwarding emails to external mailbox users and on how to disable automatic email forwarding in Office 365 and Exchange Server. Allowing users to use mail auto-forwarding brings the risk of information leakage. Additionally, users can select the option to not keep…

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Move folders and subfolders with EWS Managed API, in Exchange Online

Remaining on the same note from my previous post that speaks about email messages moves from a source folder to a target folder, I considered taking into account also the scenario where OWA users would like to move folders along with their subfolders under a target folder.  If you use Outlook, you can easily perform this task by dragging…

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Delete a list of folders from specific mailboxes with EWS Managed API 2.2 and Application Impersonation, in Exchange Online

Some time ago, I worked with a customer that wanted to remove a folder that he had created in multiple mailboxes and he didn’t know how to achieve that in bulk. At that moment, I came across a very interesting article written by one of our colleagues that explains how to create a folder under…


Why turning a Deskless license mailbox into a shared mailbox is a bad idea

Even if from a technical support perspective the above statement might be self explanatory, for quite some time now, we’ve had Office 365 customers facing this issue. They were unable to open a shared mailbox in the Outlook client, while OWA access for the same shared mailbox worked flawlessly. The error message received when trying…

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Remove Public Folders from Favorite

Remove a Public Folder Favorite using MFCMAPI     As you probably already know, in Exchange Online, you can access Calendar and Contact Public Folders through OWA. To do so, you can follow the steps described here or more detailed here. However, what happens if you decide to un-favorite a public folder from Outlook, but…

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