Damn...Since I messed that up completely, here is another try:
Your IP reverses back to this:
42.147.30.206.in-addr.arpa. 1D IN PTR server.lsbsolutions.com.
Same potential problem. The PTR should point to lsbsolutions.com, not
server.lsbsolutions.com
Also, you should be using CNAMEs instead of multiple A records. The only time you
need more than one A record in a zone is when
it's different.
$ORIGIN lsbsolutions.com.
@ 1D IN SOA atlas.teoi.net. dale.atlas.teoi.net. (
2000081601 ; serial
12H ; refresh
2H ; retry
1W ; expiry
1D ) ; minimum
1D IN NS atlas.teoi.net.
1D IN NS tethys.teoi.net.
1D IN MX 10 atlas.teoi.net.
1D IN A 206.30.147.42
smtp 1D IN CNAME server <--------you are doing nested
lookups here
server 1D IN A 206.30.147.42 <--------should be a CNAME
pop3 1D IN CNAME server <--------more nested lookups
localhost 1D IN A 127.0.0.1 <-------localhost.lsbsolutions.com?
ppl can't get to it, so why in DNS?
www 1D IN CNAME server <------even more nested lookups
ftp 1D IN CNAME server <-------ditto
@ 1D IN SOA atlas.teoi.net. dale.atlas.teoi.net. (
2000081601 ; serial
12H ; refresh
2H ; retry
1W ; expiry
1D ) ; minimum
It should look like this
$ORIGIN lsbsolutions.com.
@ 1D IN SOA atlas.teoi.net. dale.atlas.teoi.net. (
2000081601 ; serial
12H ; refresh
2H ; retry
1W ; expiry
1D ) ; minimum
1D IN NS atlas.teoi.net.
1D IN NS tethys.teoi.net.
1D IN MX 10 atlas.teoi.net.
1D IN A 206.30.147.42
smtp 1D IN CNAME @
server 1D IN CNAME @
pop3 1D IN CNAME @
www 1D IN CNAME @
ftp 1D IN CNAME @
@ 1D IN SOA atlas.teoi.net. dale.atlas.teoi.net. (
2000081601 ; serial
12H ; refresh
2H ; retry
1W ; expiry
1D ) ; minimum
and your PTR should end up returning info like this:
42.147.30.206.in-addr.arpa. 1D IN PTR lsbsolutions.com.
-CT
----- Original Message -----
From: "Dale Miracle" <[EMAIL PROTECTED]>
To: "qmail list" <[EMAIL PROTECTED]>
Sent: Monday, September 04, 2000 12:20 AM
Subject: deferral message 451
> Hello Everyone,
>
> I searched through the archive on this and it seems to be a subject that
> has been beat pretty well so I will get to the point. I know the
> problem is with dns but with who's is a good question and why it is
> sporadic.
>
> I have noticed in my logs that the same virtual domain gets the error
> "Sender_domain_must_resolve" from the same 3 mail servers quite often
> though the mail eventually does go through after as many as 100 retries.
>
> delivery 70: deferral:
>
>Connected_to_204.210.223.23_but_sender_was_rejected./Remote_host_said:_451_<[EMAIL PROTECTED]>..._Sender_domain_must_resolve/
>
> That ip address according to ARIN is Timewarner Cable cable modem
> service
> The other two ip's that is always having this error is:
> 207.180.206.1 which ARIN reports is North Coast Web
> 216.196.0.17 which is my isp's mail server. I host the domains on my
> servers and they only have a reverse.
>
> I have a couple friends on warners cable service and send mail to them
> quite often and never get this error when sending them mail but this
> virtual domain always seems to get the error.
> This virtual domain is setup to use my MX in dns. If I use nslookup on
> the above ip's, my isp can do a look up of lsbsolutions.com with no
> problem. North Coast web can only look up my domain (teoi.net) and one
> other virtual domain on my box but not any other (which are on the same
> box using the same DNS) but it could do reverses on all of my virtual
> domains. Timewarner couldn't even look up names in it's own domain so I
> wrote them off (I am not surprised, but that is a story for another
> day).
>
> Is this my problem or their problem? Some days it is fine and others it
> is not. I hope it is not my isp's because getting in touch with them is
> like getting my dog to balance my check book though they are a good isp
> (little down time and decent backbone connections) you just don't want
> to try to e-mail or call them.
>
> Thanks!
> --
>
> Dale Miracle
> System Administrator
> Teoi Virtual Web Hosting
>
