I exported up my Thunderbird data to an external hard drive from my PC in Croatia which I have been using there for the past year. I am in South Africa now for a few months and imported the data to my laptop with a new Thunderbird installation. I have 5 email accounts on one domain, and 1 on another domain. When I checked for new mail, I was asked for passwords for the 5 accounts on the one domain, and after entering this, the new emails came through fine. However the one email account on the other domain did not ask for a password, and when I connect I get a message: "Connection to server xxx@xxx.com was reset" I can send emails with this account, but cannot receive any. Interestingly, I have a previous installation on a desktop PC here in South Africa with the same email accounts. I tried that specific email account and it connects perfectly. The settings are exactly the same. How do I solve this on my laptop?