From: mouss (no email)
Date: Mon Sep 08 2008 - 12:28:17 EDT
Marcelo Iturbe wrote:
> A client has a domain (sample.com) which resolves to the IP 18.104.22.168
> The MX records this domain point to another IP completely different:
I don't see the same IPs here.
$ host sample.com
sample.com has address 22.214.171.124
sample.com mail is handled by 10 nullmx.sample.com.
$ host nullmx.sample.com
nullmx.sample.com has address 126.96.36.199
> My postfix server houses the domain someotherdomain.com,
you work for South Media Group?
> the problem is that
> I am unable to send email to my clients domain.
> When I look in the log files, I see that postfix is trying to send the email
> to the HOST and not the MX servers.
The A record is used when no MX record is found (that's how mail works).
just because _you_ _now_ see an MX record doesn't mean that postfix
could find one at the time of the transaction.
> Sep 8 11:04:40 mailserver postfix/smtp: C6B494C421D: to=<
> >, relay=none, delay=1, status=deferred (connect to
> sample.com[188.8.131.52]: Connection refused)
you'll have to do some debugging to see if you have a DNS problem.
- if you are not running a local DNS server, consider running one
- if your DNS queries are forwarded to your SP, consider disabling this
- if your postfix has chrooted services, consider disabling chroot.
- if your system resolver has bugs, try from another system
> The DNS table looks like
it doesn't matter how it may look like to you. if you want help, show
the real domain.