Try to start mail on the server with IMAP (qip.mail.ru, yandex.ru ...), configure that account in your mail program, to upload (to highlight messages in the local folder and drag the folder in the new IMAP mail account), and mail.ru to configure avtosborschik mail from this new address on the server with IMAP. The idea is to upload the IMAP and get back to the post office mail.ru :)
Success!