Due to a birst central heating pipe I had to move my computer system to another room. When I tried to re-login to my e-mail accounts on Thunderbird, I had no problems with my gmail account. But I had problems with my other account: gerard@cict.uk. The server name is outlook.office365.com. One of my outgoing server settings is: smtp.office365.com. The e-mail address gerard@cict.uk was bought from Namesco, who appears to be using Microsoft, presumably Outlook. Unfortunately I didn't make a backup of Thunderbird (just saw that it is possible), although I do have backups of my work up till 15 december 2024. Can you help? When trying to get back into my gerard@cict.uk system I changed some passwords. Strangely, having changed them I couldn't log in (incorrect password). I am depressed. I can of course continue to live, but I received about 100 emails a day. So reconstituting my system for gerard@cict.uk will take considerable time.