returning mails

[m4th3us]

Some mails simple return like this:

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

SMTP error from remote mail server after RCPT TO:<[email protected]>:
host mx.uhserver.com [x.x.x.x]: 450 4.7.1 Client host rejected:
cannot find your hostname, [x.x.x.x]: retry timeout exceeded

------ This is a copy of the message, including all the headers. ------

[m4th3us]

Problem solve...

If anyone have this problem and its using OpenVZ VPS, be carefull with multiples IPs...