Re: [cobalt-users] Sendmail relaying denied error

["David Booth" <dbooth@xxxxxxxxxxxxxxx>]

----- Original Message -----
From: "Tolentino, Elmer" <etolentino@xxxxxxxxx>
To: <cobalt-users@xxxxxxxxxxxxxxx>
Sent: Tuesday, March 18, 2003 3:24 PM
Subject: RE: [cobalt-users] Sendmail relaying denied error


> INRE RE: [cobalt-users] Sendmail relaying denied error:
> > >For one thing none of your IP seem to have "reverse" DNS.
> > >
> >  You "need" reverse DNS.
>
> Will reverse DNS work if server is based on multi domain on 1 IP address?
Are you speaking of setting up a PTR record?
>
> >Do not have a 550 so cannot help further than that...
>
I have a 550. I have multi domains on a single ip. I have only one reverse
record for the whole subnet (I have a single C class). That reverse lookup
is maintained by my tld registry (apnic). Mail works for all domains.

Your problem is:

dig 208.144.236.201
gives:
The host or domain "201.236.144.208.in-addr.arpa." does not exist (using DNS
Expert)
Whoever provides your address block must have an in.addr.arpa record
pointing at you.... how else can you be found?