I set `mail.server.server4.userName` in config editor, but didn't see an auth prompt. Do you by any chance have set `mail.server.*.always_authenticate` to true?
> The UserName pref has no real purpose on an NNTP server and should therefore not be set
Some servers require auth.
Bug 1770594 Comment 2 Edit History
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I set `mail.server.server4.userName` in config editor, but didn't see an auth prompt. Do you by any chance have set `mail.server.*.always_authenticate` to true?
> The UserName pref has no real purpose on an NNTP server and should therefore not be set
~Some servers require auth.~ You're right userName is not used in the code.