[sclug] sendmail dns question.

[James Fidell]

Quoting Simon Heywood (simon at triv.org.uk):

> While I'm on the subject, does anyone know if it's regarded as okay to
> have CNAMES as the target of MX records?

Historically it has not generally been considered a good idea because it
typically requires multiple DNS queries to find the actual host to which
the message should be delivered.

Technically however, it is possible and does work.  ISTR AOL causing a
bit of a fuss by using CNAMEs for MX records some years back.

James