BCM Call Pilot messaging with externally hosted server

[pbxnkey]

I have a customer that was using CallPilot UM Messaging and was forwarding the VM's to a local Exchange server.
They moved the server to a cloud based solution. We adjusted the Call Pilot settings but the VM's do not get forwarded. They have to use the DNS name of the cloud server because the IP of the server is dynamic and is constantly changing.
The error in the BCM is:
VoiceMail - Message Forwarding - Mailbox 256 - A protocol error occurred while delivering the message.

Does anyone have any ideas?
Thanks.

 

[curlycord]

Check page 61

http://downloads.avaya.com/css/P8/documents/100094029

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curlycord

http://www.curlycord.com

Toronto Canada

http://www.telcopc.ca

 

[pbxnkey]

Thanks curlycord but they are not using AMIS. UM was working fine when the exchange server was onsite. The error does not explain what exact protocol. I tried doing a google search but it did not return any helpful results.