Thank you for taking the time to report this bug and helping to make Ubuntu better. Does this bug still exist? If yes: can you please check in the account preferences what authentication method is used in the server preferences? Normally TLS if possible should work fine, but sometimes other possibilities need to be used.
** Changed in: thunderbird (Ubuntu) Status: New => Incomplete -- sending password did not succeed. mail server... responded: authentication failed https://bugs.launchpad.net/bugs/339707 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs