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z33k3r 2nd June 2009 23:27

Rouge MX Record - [SOLVED]
Quick help topic:

I had a domain full functional and working, but then I realized that the mail server was set to Localhost when it was in actuality a remote server. So I changed it over to remote and saved. Now if I dig from the command line, I still get the localserver as the MX record. I need to clear it so that it looks to the outside world for direction...

How would one go about doing this?

till 3rd June 2009 09:09

MX records have nothing to do with the remote server setting. To change the mx server you have to change the dns settings for the domain

z33k3r 3rd June 2009 09:12

Ok, so...
Ok, I see you and raise you a, "Where/what do I change to maket his work?"

falko 3rd June 2009 16:53

You have to modify the DNS records on the authoritative nameservers for your domain. You can out these nameservers by running

dig ns

z33k3r 3rd June 2009 18:45

So I have checked my sources and from the server, it states that the name servers are in the right place (off site). Using, tested and verified that the MX pointed to a mail.domain.tld and then that resolved IP had a correct reverse DNS entry.

But... when I "dig type mx domain.tld" i get the sever's IP address... Thus my rouge record...

z33k3r 4th June 2009 08:16

Anybody have pointers here? I am not a DNS guy by any means...

till 4th June 2009 08:29

Please post the exact dig command you used and the completeoutput that you got.

z33k3r 4th June 2009 19:00

Sorry to change directions here, but I check DNS and it has updated fully. Now I started looking in the mail logs and I am getting the following in my Postfix logs (edited for privacy):


Jun  4 09:08:56 ts1 postfix/pickup[12452]: 26662C3409F: uid=33 from=<www-data>
Jun  4 09:08:56 ts1 postfix/cleanup[13168]: 26662C3409F: message-id=<20090604160856.26662C3409F@server.domain.tld>
Jun  4 09:08:56 ts1 postfix/qmgr[654]: 26662C3409F: from=<www-data@server.domain.tld>, size=1694, nrcpt=1 (queue active)
Jun  4 09:08:56 ts1 postfix/local[13261]: 26662C3409F: to=<user@targetdomain.tld>, relay=local, delay=0.06, delays=0.05/0/0/0.01, dsn=5.1.1, status=bounced (unknown user: "user")
Jun  4 09:08:56 ts1 postfix/cleanup[13168]: 36348C340BC: message-id=<20090604160856.36348C340BC@server.domain.tld>
Jun  4 09:08:56 ts1 postfix/bounce[13289]: 26662C3409F: sender non-delivery notification: 36348C340BC

As you can see, it's trying to deliver locally instead of on the appropriate remote server...

z33k3r 4th June 2009 19:22

Do I need to add a slave record or something in the DNS manager (I don't host the dns, though i have the req. DNS software installed for ISPC)?

falko 5th June 2009 13:17

Is targetdomain.tld listed in /etc/postfix/local-host-names?
What's in /etc/resolv.conf?

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