--On Tuesday, October 21, 2008 2:37 PM +0200 Sebastian Ries <

Sebastian.Ries@dtnet.de> wrote:

># host -t MX example.com
> example.com mail is handled by 100 mail.example.com.
># host mail.example.com
> mail.example.com is an alias for hostname.example.com.
> hostname.example.com has address

Wrong. The MX record has to point to an A name, not a CNAME.

Joseph Brennan
Lead Email Systems Engineer
Columbia University Information Technology