I had to make a second account just to submit this. Our business email has been denied access to the mozilla server and we are unsure why. Restarting the email client, restarting the computer, and disabling anti virus were all tried and none worked. What else could be preventing access? Or is there a number to call to have access restored that isn't listed on any of the "support" sites. When opening thunderbird all that happens is a windows notification stating, "Could not connect to server "IP"; the connection was refused."