Outlook 2016 doesn't accept password or app password

Gabriel:

If I'm hearing and understanding everyone correctly, whatever the solution is, we need a method to sync emails, calendars, contacts, tasks, etc on Android and iOS devices, that supports Microsoft's authentication protocol, for consumer accounts and business accounts, for numerous generations of MS email protocols (outlook.com, hotmail.com, etc.) Correct me if I'm wrong, but OAUTH is not supported for consumer accounts on numerous email clients for Android and iOS. Perhaps on some(?), but not all. An MS solution and/or a list of supported email clients using the required MS protocols would be optimal.

Gabriel,

I would suggest you and team validate any procedure using an actual Android device. I think minimally a few late model Google Pixel and Samsung Galaxy devices should be checked along with iOS devices. If the Exchange service module on those devices aren't working correctly with MS' consumer emails' OAuth mechanism, then I think there is value for MS to work those issues out with said vendors. These are not obscure brands, and there are a lot of exposures in the real-world.

While Outlook for Android/iOS may work for some, it may not be an ideal solution for others, so there should be a reliable method to provide a single-point of sync for emails/contacts/calendars, EWS/EAS or successors.

Again, I don't think any of us is asking MS not to implement newer and safer authentication methods. We are asking you provide a way forward and validate OAuth on a few alternative client options.

Rob,

If the ask is to make basic auth an optimized experience again then I don't think that will happen. The Outlook Team will be deprecating it soon.

What I would like to do going forward is if there are any learnings about moving to OAuth to add them to the Known Issue article, Outlook and other apps are unable to connect to Outlook.com when using Basic authentication - Microsoft Support.

One key thing I will probably add is that when you add your account to an app, to make sure it connects with OAuth, make sure it prompts to sign in via the Outlook.com sign in dialog. If you or anyone else knows anything helpful like that please let me know and I will get it added.

MS is showing its obvious disdain for its customers. It's obvious they're not going to help -- in word or deed.

Prove us wrong Gabriel and David, please.

It's a conundrum why 1) MS hasn't fixed this yet and 2) not provided an update as to whether it will or will not be fixed, and what their findings are to date. This would go a long way to helping to appease their users.