Created attachment 2221 [details] errors of imap login to mail.yandex.ru and mail.ru After the update to 3.18 version, I can not enter the my imap yandex.ru and mail.ru imap server. The error is - incorrect imap login. Please check it! https://mail.yandex.ru https://mail.ru
You are probably using 'Automatic' for 'Authentication method' on the Receive page of your account preferences. In the debug output, just before that portion you attached, you will see a list of authentication methods and either a 1 or a 0 to show which your server supports. I guess that your server support OAuth2 and at least one other. Identify the other one and instead of using 'Automatic' for 'Authentication method', use this one. If this is the cause, then this bug has already been fixed in git and a new release with the fix will follow.
Yes, indeed. Thank you, now it works: I've replaced automatic to "Simple text". Now it works!