Help! Windows Server gurus

Hi,
My Cpanel server is having a problem sending e-mail to one domain. I just talked to the Admin of that server by phone, he was not sure where the problem is. As far as I can tell, things are great on my end, as no other domain has an issue sending mail to any other domains. I think it is an issue with his Exchange server (5.5). I can send e-mail to other Echange servers without an issue.

I am pasting in a copy from the WHM mail que, and the error is shows when I try to send directly fron the cue. Any help would be very much appreciated. (IPs removed).

Please. Help! Windows Server gurus

Glenn

Message 18YpPi-0006FB-00 is not frozen
delivering message 18YpPi-0006FB-00
Connecting to mail.domain.com [xx.xx.xx.xx.25] ... connected
LOG: 0 MAIN
Remote host mail.domain.com [xx.xx.xx.xx closed connection after initial connection
LOG: 0 MAIN
== email@domain.com T=remote_smtp defer (-19): Remote host mail.domain.com [xx.xx.xx.xx] closed connection after initial connection

 

 

 

 

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