One month from today, we’re going to start to turn off basic auth for specific protocols in Exchange Online for customers who use them.
Since our first announcement nearly three years ago, we’ve se...
Updated Jan 01, 2023
Version 16.0
Blog Post
5 MIN READ
Basic Authentication Deprecation in Exchange Online – September 2022 Update
Nino_Bilic
Microsoft
Microsoftnotlien_ After basic auth is permanently disabled, Outlook for Windows will stop working as a POP/IMAP client for Office 365. There is not plan to add modern auth support to Outlook at this time. You'd have to move to a different POP client (for example Thunderbird) or alternatively use the new "send from alias" support (in preview) to keep using Outlook with a more modern protocol. Sending From Email Aliases – Public Preview - Microsoft Tech Community
MartinN1983 That will not work, because the way that we disable basic auth takes precedence over authentication policies. In other words - if we disable the protocol, auth policies cannot be used to enable basic auth on specific accounts.
davonacz Sorry I do not totally get it - is this a question? Do you have a problem?