Email unable to deliver, pls HELP!


Jul 19, 2007

I need help again. My email was unable to deliver to my vendor's domain
Think this happen after we asked our ISP upgraded to virtural dedicated server using cPanel.

Refer to our previous email to this vendor, all the way no problem and the latest communication with them via email is 17th June. However now my colleague said cannot send to them. I tried myself, also cannot... Pls help!!! :(

Tried hotmail to send, no bounce back message. Below is the bounce back mail from server.

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:

[email protected]
SMTP error from remote mail server after initial connection:
host []:
554 #5.5.4 Relaying denied. IP name lookup failed for