У меня такая же байда

This is the mPOP.Fallback_MX program at host mx4.mail.ru.

I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the message returned below.

The mPOP.Fallback_MX program

<shot@tmarena.ru>: connect to tmarena.ru[217.23.159.89]: Connection refused