Mail bounces back ---Delivery Failure report

Hi All,

When i am sending an email to an external domain (Foreign Domain0 – Settlement@XYZgroup.com , it bounces back…I get this error :

Router: Failed to connect to SMTP host XYZgroup.COM because : The remote server is not a known TCP/IP host.

I tried doing telnet to XYZgroup.com IP Address on port 25 , and it is up and running.

I also tried doing telnet to my server on port 25 and it is running fine.

I also tried sening an email frm outside hotmail.com to my Address here and I got the email.

What could be the problem…What do I need to check any connection/ Config/Domain/Documents for this Foreign Domain.

Please if someone could throw some light.

Thanks in advance,

ac ac