On Mar 24, 2005, at 2:30 AM, Richard Parvass wrote:
> FYI, CNAMEs are prohibited in MX records, according to RFC1912 2.4,
> and RFC2181 10.3.
I would recommend that each mail server, through the mail server
software, be configured to route to the other domain specially. Every
MTA has a mechanism for dealing with exactly this.