Hi amertel Please try troubleshoot mode: https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird If that doesn't help: Please provide the following troubleshooting details to help us help you: # let us know what operating system e.g. macOS Ventura, Windows 11, Ubuntu 22.04 # let us know what 3rd party software like add-ons, anti-virus or firewalls you are using (and please try disabling them and see if that helps) # finally, let us know if the suggestions in [[Microsoft OAuth Authentication and Thunderbird in 2023]] help with your GoDaddy email hosted by Microsoft. Cheers! ...Roland