THUNDERBIRD - This problem has started a few days ago. Over many years of faultless service using Thunderbird I wonder what is going wrong? After uninstall Thunderbird from my PC (Windows 11) I have re-installed latest s/ware and re-setup 4 email accounts. The SMTP server is recognized. However when sending an email the program asks for the password to be entered again. Incoming emails are not affected. Where do I go to setup the outgoing server details.