From owner-freebsd-isp  Mon Aug 13 14:11:33 2001
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From: "alexus" <ml@db.nexgen.com>
To: <bv@wjv.com>, "A. David Perez Marfil" <dperez@unimayab.edu.mx>
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References: <81C8CA3C286FD511A959000102C9B2CE0F0C24@EXCHANGE> <20010813164806.B76788@wjv.com>
Subject: Re: sendmail relay by domain sender address
Date: Mon, 13 Aug 2001 17:11:25 -0400
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reduno.com.mx itself must be resolving

i think what the problem is your domain is in cache as unsolved domain, try
to restart your named

----- Original Message -----
From: "Bill Vermillion" <bill@wjv.com>
To: "A. David Perez Marfil" <dperez@unimayab.edu.mx>
Cc: <isp@FreeBSD.ORG>
Sent: Monday, August 13, 2001 4:48 PM
Subject: Re: sendmail relay by domain sender address


> On Mon, Aug 13, 2001 at 01:11:53PM -0500, A. David Perez Marfil thus
sprach:
>
> > Every works just fine but with some domain i got this problem.
> >
> > Aug 13 08:21:09 dns sendmail[12926]: f7DDL8p12926: ruleset=check_mail,
> > arg1=<jcastill@reduno.com.mx>, relay=reduno.reduno.com.mx
[192.100.183.178],
> > reject=451 4.1.8
> > <jcastill@reduno.com.mx>... Domain of sender address
jcastill@reduno.com.mx
> > does not resolve
>
> > but if i do a nslookup...
>
> > > set type=mx
> > > reduno.com.mx
> > Server:  dns.unimayab.edu.mx
> > Address:  172.21.14.5
>
> Do an nslookup on the IP.   It's trying to resolve the IP to a
> name.  Bet someone left out some reverse mapping.
> Does nslookup 172.21.14.5 give a result?
>
>
> --
> Bill Vermillion -   bv @ wjv . com
>
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