Re: PTR record

[Kevin Windham]

Looks good to me. Well, your backup doesn't match, but I doubt that has 
anything to do with sending mail. My results on the DNS lookup are 
below. I assumed you were talking about mythtech.net.
Have you checked your logs to see what the error the other server is 
actually returning?

-Kevin

; <<>> DiG 9.2.2 <<>> -t mx mythtech.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1848
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 4
;; QUESTION SECTION:
;mythtech.net.                  IN      MX
;; ANSWER SECTION:
mythtech.net.           86400   IN      MX      30 bmx.mythtech.net.
mythtech.net.           86400   IN      MX      10 mail.mythtech.net.
; <<>> DiG 9.2.2 <<>> -x 68.165.138.76
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43162
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;76.138.165.68.in-addr.arpa.    IN      PTR
;; ANSWER SECTION:
76.138.165.68.in-addr.arpa. 3600 IN     PTR     mail.mythtech.net.
; <<>> DiG 9.2.2 <<>> -x 64.81.198.38
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 928
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;38.198.81.64.in-addr.arpa.     IN      PTR
;; ANSWER SECTION:
38.198.81.64.in-addr.arpa. 3600 IN      PTR     
dsl081-198-038.nyc2.dsl.speakeasy.net.

On May 14, 2004, at 9:42 AM, chris wrote:

I've got a person that is supposed to be receiving email from me, but
their server is currently rejecting it. I've been told their mail admin
claims it is because I lack a PTR record on my domain, so their server 
is
flagging it as spam.
But you do have one, and it looks fine.

A PTR Record is just a reverse DNS correct? (I looked it up to double
check, and that is still my understanding). I do in fact have that set
for my mail server.
Yes.
I do notice two things in the bounced email. 1: SIMS is claiming the
domain to be my main domain, as it is set in the SIMS config. But the
r-DNS is for the subdomain my mail server actually resides at. So based
on the headers, the IP and the given domain are not an exact match.
Should my "main domain" in SIMS in fact be the subdomain the server DNS
is set to (ie: mail.domain.com vs domain.com).
mail.domain.com is not a sub domain. mail is the host in the domain 
domain.com. I think your config is correct the way it is.



I'm trying to see what I can do to find the problem and resolve it on 
my
end before reaching out to the other server admin. It took months to 
get
them to even look at the issue, and I have to pass thru 3 different
people to even try to find out who the other mail admin is (and there 
is
a good chance I won't be able to talk to them directly... gotta love
office policts!)
Maybe you can check the actual error message from the server that is 
rejecting the email. Assuming there is one of course...
Anyone have a clue?

-chris
<http://www.mythtech.net>


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