Mac Mail: macOS 10.14 (Mojave) and under.Microsoft Outlook: Version 2013 and under.Some popular email applications will no longer be supported.

You are using a modern system with an up-to-date operating system.

You are connecting using the Exchange protocol, rather than POP/IMAP.

This decision will require an update to any connection using Basic Authentication to switch to Modern Authentication which uses superior security techniques to keep your connection secure.Īs a rule, if you match any of the following conditions then it is unlikely that you will be affected by this change: Microsoft has taken the decision to deactivate any connection using Basic Authentication. Traditionally, this was enabled as default on applications predating 2016.īasic Authentication has become outdated and there are security risks associated with its continued use. It’s the method that applications use to send your username and password to the Microsoft services. Unfortunately, we are unable to make any required changes for you as it’s a local setting on your affected device.īasic Authentication is a method used to connect to email servers. We have put together this handy support guide to help you identify if you’ll be impacted by this change and what you can do to make sure your emails continue to function.

From that date, only email clients that support Modern Authentication will be able to connect to the service. From 1 st October 2022 the Microsoft 365 service will no longer support Basic Authentication.

Check modern authentication office 365