He intentado desde otra cuenta y me devuelve esto
(expanded from <
[email protected]>): host
mx.ya.com[62.151.4.44] said: 550-Blocked - see
http://www.spamcop.net/bl.shtml?216.104.160.35 550 mail from 216.104.160.35
rejected: administrative prohibition (host is blacklisted) (in reply to
RCPT TO command)