I am Dale Hayter, a Microsoft and VMware certified Technical Consultant.

My blog has been built up over the years from my experience of working on an IT helpdesk and also from being out on-site.

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How to Enable Modern Authentication in Exchange Online in Office 365

For Outlook 2013 and 2016 to be able to pass through credentials we have to enable Modern Authentication. To do this connect to Exchange Online via PowerShell. See the link below on how to do that.

Connect To Exchange Online in 365 via PowerShell

Then once connected run the commands below.

The Output is shown below: