Re: /usr/sbin/sendmail specification proposal, draft 4

["H. Peter Anvin" <hpa@transmeta.com>]

Alan Cox wrote:
> 
> > Previously H. Peter Anvin wrote:
> > > I think SMTP delivery to the localhost SMTP port should be permitted
> > > as a matter of course (this basically means that sendmail should be
> > > set up to have relay permission on the localhost address; I believe
> > > this is standard for obvious reasons.)
> >
> > I disagree. I don't see why we should enforce people to open up a local
> > SMTP port. It's not even a standard option for most MTAs do that.
> 
> exim actually has to be specifically told to allow local relaying. Many
> admins don't like this. Also it breaks our future planning badly.
> 
> What happens when IPv4 has gone away ?
> 

You do the same thing over IPv6?  Note, I don't *like* this.  I'm just
observing it's unfortunately a reality.

	-hpa 

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