Re: [Exim] DNS RMX RR?

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Auteur: Nigel Metheringham
Date:  
À: Sven Geggus
CC: exim-users
Sujet: Re: [Exim] DNS RMX RR?
On Thu, 2003-05-29 at 14:30, Sven Geggus wrote:
> A DNS RR for simple SMTP sender authentication


Its not really a good title for it - its really proposing an IP/domain
link for authorisation of senders.

> And I was wondering if it would be possible to have exim behave like this
> RFC states?


I'd say its a little early yet... there are 2 alternative DNS syntax
proposals there. I would prefer to have the RFC at least in a later
draft form before releasing any implementations.

Could anyone enlighten me how much needs doing to resolvers and DNS
servers to support this? I assume there will need to be some degree of
underlying infrastructure rehashing to allow this stuff to be produced.
[Unless you hack it into the TXT records]

However it looks to me as though it would be relatively easy to support
within exim acls. In the early stages though it might be better done as
a scoring mechanism in spamassassin - ie add 4 points for incorrect RMX

We do need to work out appropriate exim acl syntax.

    Nigel.


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[ Nigel Metheringham           Nigel.Metheringham@??? ]
[ - Comments in this message are my own and not ITO opinion/policy - ]