Re: [EXIM] DNS

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Autor: exim-users
Datum:  
To: exim-users
Betreff: Re: [EXIM] DNS
Evan Leibovitch wrote:
> On Tue, 14 Apr 1998, Dave C. wrote:
>
> > > There seems to be more and more broken DNSs these days and most of
> > > them seem to be running NT.
> >
> > Yes, and more and more bigoted sysadmins refuse to beleive their
> > Microsft systems are broken. Just like the ones with underscore in
> > hostnames.
>
> So what is the answer?
>
> - make workarounds which effectively change the standard to suit MS's
> whims?


SBS (Small Business Server - part of Microsofts Back Office Product),
does non-rfc ehlo's. It's is none RFC in so much that it doesn't follow
a FQDN after EHLO. (as well as a non standard ETRN request).

> - refuse to send mail to such sites? (this may have the undesired effect
> of having people turn to MS solutions to cope with MS brokenness if they
> *must* be able to get through to such sites)


It's generally a pain in the arse. We use exim as smarthost class
machines here at Demon. It's prooved a nightmare as the number of
clinets who use some form of MS hack (albeit outlook/exchange/exchange
server), which has this non rfc complient EHLO. I guess you can shout at
M$ and hope they 'service pack' it (insert: fix the damn bug). But in
the interim we are having to give non-550's to non-fqdn ehlo's.

> - send them the mail, but include an automatic attachment telling them
> their system is broken, matter-of-factly stating where their site
> breaks an Internet RFC?


Most clinets go "huh?", I payed x million bucks for this, and it's
microsoft, it aint broke!".

>
> - Something else?
>


deltree windows or deltree winnt ;-)

I guess it one of those things you have to live with (well put up with
in M$ case).

D.

-- 
Dave Sloan, System Administrator (NOC)              Demon Internet Ltd
                                                 322 Regents Park Road
                                                      Finchley, London
Email: dsloan@??? / (home) holborn@???     N3 2QQ


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