After too many problems with Outlook to mention I decided to give up on it and install Thunderbird, but must have made a mistake somewhere because everytime I try to collect mail I get the message Invalid Login/password pair. I must have misspelt the password, but like an idiot I ticked the box to remember it. I cannot find anywhere within Thunderbird and option to verify or change the password. The account name is definitely correct. (Wanadoo).
There is no problem with sending mail.
I am now in the ridiculous position of being able to receive, but not send in Outlook, and can send, but not receive in Thunderbird.
Grateful for any help in finding where to reset the Thunderbird password.
It can happen that you will find no checkbox in Thunderbird to remember passwords. To change this, you will need to edit the prefs.js file, located in the Thunderbird profile folder.
Close Thunderbird and open the prefs.js file in Notepad or another editor (make a backup copy of prefs.js first, as a precaution). Find the following line: user_pref("signon.rememberSignons", false); Change the value from false to true. Close the Notepad or editor window and save changes. On the next startup of Thunderbird you should find the checkbox for remembering the password in the password manager.
This is for a password not being remembered, but will no doubt work in reverse.