hello when TB tries to get messages, it gives the following messages "Sending of password for user Roberto.Bis did not succeed. Mail server pop3.club-internet.fr responded: Invalid login or password" "Login to server pop3.club-internet.fr with username Roberto.Bis failed." I now only have access to email through Firefox/server. The passwords did not change on server (I checked them), and are the sames that I can see on TB preferences>passwords>save passwords I have attached the file with application basics I get from TB Help>Troubleshooting information. I would ave liked to send you the whole file but apparently I can only attach images. If you need the complete file I would need an email address to send it. What happened / I already tried ? This morning I entered twice a wrong master pw when opening TB, but third time I got it right ! Got the error messages stated here above for the two accounts that I have from the same provider/server I restarted the computer, no changes I changed the pw on the server, and accordingly on TB for one of my two accounts, but the problem stays the same. I looked around the web, and the most helpful but not successful were at http://kb.mozillazine.org/Password_not_remembered_-_Thunderbird I can say that : I did not move the profile or upgraded TB the server is working fine and so is Firefox logins.json and key3.db (not key4.db) files exist in the profile. logins.json has today as creation date (because I changed one account pw today ?) key3.db creation date is also today. Creation dates on my last external HD back-up : for key3.db the back-up date, but logins.json a date in last June. also : http://kb.mozillazine.org/Password_rejected none seems to correspond to my case. As far as logging server connections as indicated in the last chapter, it looks a bit difficult for me, so I did not try. I thank you very much in advance for your answer. Happy New Year Roberto