RE: mail does bounce (was: Customers down?)

["Roeland M.J. Meyer" <rmeyer () mhsc com>]

> > I think I like it better that way. Just because both nameservers are
> > temporarily down doesn't mean the domain doesn't exist. :P
>
> Seems to me you're talking past one another. If all nameservers for a
> domain are down there *is* no nameserver which can say that the domain
> is authoritatively non-existent. (OK, you could get a negative caching
> answer from one of the authoritative servers on the level above, but
> that's a different issue...)
>
> I agree with Greg Woods - if a domain is authoritatively non-existent,
> I'd expect a sane mailer to bounce the message.

I'm glad that you don't write code, especially sendmail code.