Author: A.Stanislav (21 Sep 07 9:05pm)
I believe what GS is asking is this:
Suppose you have a domain, say easydomain.com and want to donate a subdomain, say mail15.easydomain.com to the project.
Now, normally you would make an MX entry of mx5.mxmailer.com to handle the mail for mail15.easydomain.com.
The question that GS was asking, I believe, is:
Could you instead create a record of, say, mx1.easydomain.com to be the CNAME for mx5.mxmailer.com, and then make mx1.easydomain.com the MX record for mail15.easydomain.com?