Update: The full timeline for retirement of Basic Authentication in Exchange Online is now published in Basic Authentication Deprecation in Exchange Online – September 2022 Update.
In about 150 day...
Updated Sep 01, 2022
Version 5.0
Blog Post
Greg Taylor - EXCHANGE
Microsoft
Microsoftarislacdao - no, there is not. Security defaults enabled means no legacy auth. Blocked.
JiriF - we should have some news soon. Guidance by the end of the month is what the team is telling me.
Greg-CNS - I'm not sure what you are asking is either clear, or possible. I'm sorry. I hope support can help, as I'm not sure this is the best place to answer these kind of questions, but I'll repeat what I said before - we're not turning off basic auth for SMTP. If you want to keep using it, keep using it. To one of your other requirements - make an OAuth app require Authenticator every time it opens - I'm not sure that's possible, someone else here might know how to set it up, perhaps you can mess with token lifetimes or use Conditional Access to enforce it, I'm not sure. But if it's not possible then, well, not sure what to say. Your IMAP mailer in the Medical App - the app needs to be updated to work with OAuth, or it's going to break. If you want to keep connecting to a mailbox in Exchange Online anyway.
caidsoffice365 - upgrade to 2.0.6.....?