Mac Mail on Macs running macOS 10.13 (High Sierra) or older Remove and re-add your email profile in Outlook on Mac.Remove and re-add your email profile in Outlook on Windows.Modern authentication is supported in Office 2016 and newer.Microsoft Office 2016 or newer on Windows or Mac Update to the latest version of Office and re-add your email profile.Microsoft office 2013 or older do not support modern authentication.Microsoft Office 2013 or older on Windows or Mac Remove and re-add your email profile in the Outlook app or Gmail app.Remove and re-add your email profile in the Outlook app or default Mail app.If your device has iOS 11 or older, you will need to update to at least iOS 12.Note that removing an email profile does not delete your email or calendar items, as they are stored on the server, it simply changes the connection method. What are my next steps?įor many users, the resolution will be to remove and re-add your email profile to your device. If you have received a notification please note that we do not have detailed information about which devices are using Basic Authentication so make sure to update all of your devices. For these systems, you need only remove your email profile from the device and re-add it using the correct authentication method.Ĭommunications have been sent to users who are currently connecting via Basic Authentication. This may include up to date applications that were configured to use Basic Authentication even though they support Modern Authentication.

If you were using an application that was connecting via Basic Authentication you will lose access to the account on that device starting Oct 1, 2022.

Modern Authentication is vastly more secure and allows for the use of Multi-Factor Authentication (MFA).

Modern Authentication will take is place which utilizes authentication tokens instead of a users username and password. This change will affect how Microsoft applications connect to various Office 365 tools. Beginning on OctoMicrosoft will end support for Basic Authentication methods.

Office 2013 modern authentication