MX question

[Dawn Connelly]

Hopefully you are reading the forum because it looks like you are in fact having
email problems. DNS isn't your problem. Your email server doesn't know who you
are:
The original message was received at Tue, 22 Aug 2006 09:39:02 -0700
from iago [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<jim at compton.net>
    (reason: 550 <jim at compton.net>: Recipient address rejected: User unknown in
virtual alias table)

   ----- Transcript of session follows -----
... while talking to compton.net.mail1.psmtp.com.:
>>> RCPT To:<jim at compton.net>
<<< 550 <jim at compton.net>: Recipient address rejected: User unknown in virtual
alias table
550 5.1.1 <jim at compton.net>... User unknown

You DNS resolves fine:
# dig compton.net mx

; <<>> DiG 9.2.4 <<>> compton.net mx
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12239
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;compton.net.                   IN      MX

;; ANSWER SECTION:
compton.net.            300     IN      MX      200 compton.net.mail2.psmtp.com.
compton.net.            300     IN      MX      300 compton.net.mail3.psmtp.com.
compton.net.            300     IN      MX      400 compton.net.mail4.psmtp.com.
compton.net.            300     IN      MX      100 compton.net.mail1.psmtp.com.

;; AUTHORITY SECTION:
compton.net.            172800  IN      NS      ns2.compton.net.
compton.net.            172800  IN      NS      ns1.compton.net.

;; Query time: 118 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Aug 22 09:59:00 2006
;; MSG SIZE  rcvd: 210

Quoting Jim <jim at compton.net>:

> hi folks,
>
> I have a customer's dns server (bind - not sure of version) not able to
> resolve my mx records to one of my zones. Here are my current records:
>
>  100 mydomain.com.s5a1.psmtp.com.
>  200 mydomain.com.s5a2.psmtp.com.
>
> I'm being told from the customer that my mx records are formatted
> improperly. His argument is that his version of bind is unable resolve the
> mx record when the domain name _does not_ appear at the end of the record
> (ie s5a1.psmtp.com.mydomain.com would work fine for him).
>
> Is this is a known problem with some versions of bind?
> Can someone point me to documentation that tells me proper/illegal syntax
> for my mx records.
>
> Thanks,
>
> Jim
>
>
>