Can anyone tell me how to relay external email thru the email server that is provided on the elastix. For example: I have an external fax server that needs an email server to connect to to send faxes. I want to allow this server to send thru our email server. I can get local ip's to relay just not external ones. Do I put our external wan ip in the relay list or do I have to put the external ip of the external fax server? any ideas???