I am trying to send an email to a Russian client, but email is returned with:
194.67.23.20 does not like recipient.
Remote host said: 550 Access from ip address 204.10.107.118 blocked. Visit @MAIL.RU: ???, ? ??? ???, ???, ???, ???, ???, ???. @MAIL.RU - ??? ??? ??? ???
Giving up on 194.67.23.20.
— Enclosed are the original headers of the message.