abdul basit

Dear All,

Please help meoutin this matter , I am using W2K server
and exchange 5.5 with SP4 , every thing is working fine ,
All the user are sending mails and receiving them back ,
But if any client try to send mail through OWA the mail
return with this error which i have given below. The
clients are receiving mails but can;t send it to foreign
domain . please help me out in this matter , this is very
urgent .


Your message did not reach some or all of the intended
recipients.

To: 'basit14@hotmail.com'
Subject: test mail fromabm on 4-9-03
Sent: 9/4/2003 11:38:16 AM

The following recipient(s) could not be reached:

'basit14@hotmail.com' on 9/4/2003 11:40 AM

Unable to deliver the message due to a recipient
problem
M***CH:M***changeIS:bayerdas:BAYERDAS