Re: users with vanity domains

On Tue, Oct 14, 2003 at 01:53:37PM -0400, Raymond S Brand wrote:
> 
> I just checked the 03 draft and didn't see how RMX solves the problem. What
> section is the solution in. I did find discussion of the problem and the
> suggestion the the POP server could be used for outbound mail but that isn't
> part of the RMX proposal.

See section 5.4.1 on page 13.

RMX has an entry type for domain names, pointing to a host.
It is up to the host to keep the DNS name up to date, e.g. using
DynDNS. E.g. if the RMX entry for my domain contains an entry
host:notebook.danisch.de  and my notebook performs a DynDNS update
after dialing in, the notebook is permitted to deliver.





> > But this is one of the main reasons why I do believe that we need
> > a client library with some intelligence and cannot use just primitive
> > DNS querying through rewriting rules.
> 
> Any standard that is so complicated that we need to supply a client
> library so that sites will implement it, is not likely to be implemented
> at enough sites to be useful.


Dou you believe you're able to give a description of a ruleset which
can be processed by every MTA? If we leave it up to every MTA
implementor to interprete the draft in his personal flavour, we won't
have the non-ambiguity we need. Most MTAs will need a library
implementation anyway, e.g. all those Firewall MTAs. And as far as 
I know an RFC also requires a reference implementation. If we have to 
provide a reference implementation, we can make this available for
free.

In other words: Describe how you would like to do it without a
library, and I'll tell you which MTA will not be able to do it.

regards
Hadmut