Set-OrganizationConfig -OAuth2ClientProfileEnabled $true In the newly opened window enter the following:-Įnter your tenant administrator login information.$MFA = New-Object -ComObject InternetExplorer.Application -Property command above installs a module which then launches another PowerShell window. Connect to Exchange Online (If user has MFA enabled) using the following steps:.Turns out that if your tenant was created before 2017 (ours was 2014) then the default policies in place for the basic Azure type licenses that come with the lower tiered licenses like Exchange Online might not work very well when enabling MFA on a user account! Tenants created later than 2017 tend to work just fine. I know this type of problems exists with older versions of Outlook 2013 and lower and there are workarounds for it but this is Office 2019! Solution:-Īfter raising a support ticket with Microsoft and getting a call back pretty much straight away from a very knowledgeable “Support Ambassador” we managed to sort the problem. When it comes to Outlook 2019 they just repeatedly get asked for their email credentials in a standard type popup box as opposed to the newer MFA style popup that you see like when you login to where it asks for email, then password, then MFA option. Users can access Outlook on the web without any problems and get notifications sent to the “Microsoft Authenticator” app to approve or SMS if they choose one of the other authentication options. I enabled MFA for a couple of users which works fine logging in to Microsoft 365 tenant, mainly using Exchange Online (Plan 1) licenses.
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