Strange MX Record for altavista.com

[Francis Dupont]

 In your previous mail you wrote:

   >      ;; ANSWER SECTION:
   >      altavista.com.          10M IN MX       0 .
   
   	It's an attempt to say "don't sent mail to the domain
   	altavista.com."  It's a pity it is not been codified
   	AFAIK.
   
   	I would be teaching my MTA to treat a MX record like
   	this as a indication to just bounce the mail.
   
=> perhaps it is time to reconsider RFC 1846 which provides a cleaner
way to bounce any mail?

Regards

Francis.Dupont at enst-bretagne.fr

PS: it is an operational issue so in the scope of DNSOP WG.