Steve Wendt wrote on 08/03/2022 01:44:
> It looks like Office365 is going to force everyone to use OAuth2 by October this year. I tried using the existing OAuth2 support in SeaMonkey, and it doesn't seem to work; from what I'm seeing, on the Thunderbird side it requires version 78 or later.
>
> Anyone know if there are any planned updates in this area for SeaMonkey?
One year ago, the company I work for moved to Office365 and I immediately lost access to my emails over POP3.
After finding that OAuth2 was required, I tested the Thunderbird email client and it worked, but then I knew it was necessary to use IMAP instead of POP3.
So I just converted my account in Seamonkey to IMAP, selected OAuth2 for authentication and since then it has been working perfectly.