Making a server the main domain mail server?

Hello,

I recently set up a new mail server for mchgroup.org, after our old one
died. I inherited this system a few months ago, so I am not completely
familiar with everything on it, and I am fairly new to configuring mail
servers. I am using sendmail as the MTA, with Cyrus for IMAP mail
delivery. Everything is working okay, except that mail sent to
username@mchgroup.org is disappearing into a black hole. Email sent
straight to the server - username@list.mchgroup.org - goes through.
The MX record for the domain points to gaia.mchgroup.org, which it
always has. Nothing on gaia has been changed. Is there anything on
the new server that I have to configure to get it to be the default
mail server for the domain?

Thanks,

Matt

Re: Making a server the main domain mail server?

matt.singerman@gmail.com wrote:

> mail sent to
> username@mchgroup.org is disappearing into a black hole. Email sent
> straight to the server - username@list.mchgroup.org - goes through.
> The MX record for the domain points to gaia.mchgroup.org, which it
> always has.

Your description doesn't match reality:

mchgroup.org. 7200 IN MX 10 MAIL.mchgroup.org.

MAIL.mchgroup.org. 7200 IN A 141.161.111.122

220 smtp.ncemch.org ESMTP Sendmail 8.12.10/8.12.10/millert at your bidding
at Sun, 3 Jul 2005 18:16:03 -0400 (EDT)

list.mchgroup.org. 7200 IN A 141.161.111.77

220 list.mchgroup.org ESMTP Sendmail 8.12.10/8.12.10; Sun, 3 Jul 2005
18:17:47 GMT

gaia.mchgroup.org does not exist.

Thor

--
http://www.anta.net/OH2GDF

Re: Making a server the main domain mail server?

mail.mchgroup.org points to gaia.ncemch.org:

mail.mchgroup.org has address 141.161.111.122
122.111.161.141.in-addr.arpa domain name pointer gaia.ncemch.org.

Now, I'm thinking the easiest way to fix this is to just change the MX
record for mchgroup.org; however, because it was set up to work with
gaia before, I'd kind of like ot keep it that way, so if there's
something I can change to do that, I'd like to. Any ideas?

Re: Making a server the main domain mail server?

matt.singerman@gmail.com wrote:
>
> mail.mchgroup.org points to gaia.ncemch.org:
>
> mail.mchgroup.org has address 141.161.111.122
> 122.111.161.141.in-addr.arpa domain name pointer gaia.ncemch.org.

gaia.mchgroup.org != gaia.ncemch.org.

> Now, I'm thinking the easiest way to fix this is to just change the MX
> record for mchgroup.org

mchgroup.org. 7200 IN MX 10 MAIL.mchgroup.org.

MAIL.mchgroup.org. 7200 IN A 141.161.111.122

(I am repeating this since you didn't quote any of my previous response)

First decide where you want mchgroup.org mail to be sent.

- If you want your mail to go to the server at 141.161.111.122, do not touch
the MX record. Troubleshoot your mail server configuration instead.

- If you want your mail to go to the server at 141.161.111.77, set the MX
record to list.mchgroup.org. Also configure that server to understand that
mchgroup.org is local.

- If you want your mail to go somewhere else, find (or create) a domain name
which resolves to the IP address for the host/interface in question. Then
put that domain name in your MX record. Also configure that server to
understand that mchgroup.org is local.

Thor

--
http://www.anta.net/OH2GDF