"The bat login failure or pop3 disabled" - how to fix?

Question

POP3

I worked for myself mail and work, and yesterday an error appeared, which is in the title.
the box is registered on Yandex.
At what other mails from Yandex work normally.
login / password - correct, because I can easily go to the browser

Answer 1

See if POP3 is enabled in the mailbox settings:
settings.su/yandex/pop