Hello Rick,
I am using a provided service of Office365 which is the IMAP interface. I am using this interface because it suits my needs the best, across platforms and operating systems.
As we already seen the test accounts are working fine. So the client can handle the IMAP protocol correctly.
My account was working fine at the beginning, and never encountered this problem.
However since the Offce365 blackout it behaves this way. (this is correlation and might not causality)
Because the client side settings did not changed, and are the same as they are on the test accounts, the only place for difference is the cloud.
Are there any differences between handling accounts?
Some kind of white lists, black lists, different rule sets for different account?
Anything that can be different?
Regards,
Robert