I'm Using Thunderbird version 148.0.1 (32-bit) on Windows 10 Pro I currently have 2 email accounts in Thunderbird...a Gmail account and a private account linked to my own webpage account. Both these accounts are working very well and I encountered no problems when I originally set them up some time ago....... However.. I am trying to add an additional email account. a Live .co.uk account I enter my Full Name and email address "xxxx@live.co.uk" as requested... I enter my password for this account and in my "Your Login" details ( the characters "xxxx" before the @ in my email address) I then select "Continue"........... Response : "looking up configuration...." Then.... Authentication failed. Please check the username and password...Exchange auth error I know I have entered the correct username and password for this account... and the account works fine on my mobile phone email app. using the same username and password..... No matter how I try, I am unable to set up this existing Live mail account so that I can access it in Thunderbird...... along with my other email accounts in Thunderbird, which are working OK.... Any suggestions as to how to fix this annoying problem, would be really appreciated......... Thank you