I did a workflow in the summer with these settings, and it worked. Now I tried running it again, and it says "Login denied" or "Timeout was reached". Nothing changed, and I contacted the IT department and tried with them different approaches - none of them worked but on the Telnet, the server and the port connected successfully. My colleagues have the same problem. I am using Alteryx Version: 2021.4.1.04899. Does anybody have an idea?
I've found an old post from 2021 - the author suspected that it is caused by multi-factor authentication on O365 account. I'm also investigating this with other people within my company, will let you know if I have any information.