In this blog post it is mentioned that basic auth support for IMAP would be removed in October 2020. It also mentions Oauth2 support will be introduced soon. Could you provide any timeline for Oauth2 support?
In our product for a use case, we rely on IMAP to sync a specified mailbox . We are using IMAP with basic auth now. Will Oauth2 support be released before Oct 2020. Is there any beta program to which we can sign up, so that we can make the required changes and test.
Microsoft have now released support for IMAP OAuth support. See “ Authenticate an IMAP, POP or SMTP connection using OAuth” for details.