Re: A Quickhack

Hadmut Danisch wrote:
> 
> On Sun, Oct 26, 2003 at 08:11:14AM -0500, Richard Rognlie wrote:
> >
> > It might tell you that "yes, this host is allowed to be this IP"
> > but it says nothing about "this IP is allowed to send mail and
> > claim to be this hostname"
> 
> No. Having a
> 
> somehost  A 1.2.3.4
> 
> does not mean, that somehost is allowed to be 1.2.3.4, but in this
> context it confirms that 1.2.3.4 is permitted to claim to be
> somehost.somedomain....  Why else would anybody have such an entry?
> 
> Should we really try to restrict who is allowed to send e-mail at all?

All of the proposals under consideration are about who can send mail
as being somehow related to a domain.

> > I can think of many times that I've had hosts that have completely
> > valid host/IP setups, but that I would rather they not send mail.
> 
> Have these hosts been part of your domain?

Think about large farms of university lab computers or dorm computers,
or internet cafe computers, or corporate desktop computers, etc.


Raymond S Brand