Activate Outlook 2013 and older

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Activate Microsoft 365 for Outlook and older



Step 1: Go to and log in.



Step 2: Then under “Properties” (1), click on “Manage security standards” (2) and deactivate the security standards (3).








Step 3: Log in to Microsoft Office 365 at Click on the menu and open Admin on the left side (1).








Step 4: Click on the search box at the top, search and open “Organisation settings” (1). Then scroll down on the left side and open “Modern authentication” (2). On the right-hand side, deactivate Modern authentication for Outlook 2013 and higher (3).








Step 5: Now you should wait one hour before logging on to the Exchange Server with Outlook 2013.

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