Every time I try to send mails using my Microsoft365-Account, Thunderbird 102.11.0 fails to connect to the SMTP server at smtp.office365.com. Trying to set a new password from the dialogue just leads to the very same error message without enabling me to change or set a new password, leaving me stuck with the situation. IMAP works fine and as intended. Things I've tried so far: * Disabling IPV6 for all connections * Deleting OAuth-Tokens and allowing Cookies from https://login.microsoftonline.com by default * Using the newest Thunderbird Public Beta All leading to the same warning, that my Login attempt for smtp.office365.com with user name ''abc@xyz.de'' has failed. I've run out of options and leads. Any advice is appreciated.