Multiple MX Records

[vern]

I am running BIND9 on CentOS

I am going to Microsoft Live for a group of people for their email.

Right now I have one MX Record in my primary zone file that is:

IN MX 10 mail.domain.com.

This handles the mail to jdoe@domain.com


I need to add another MX record that will read:

IN MX 10 ##########.mail.outlook.com.

The CNAME record which it refers to is:

others.domain.com. ########## IN CNAME domains.live.com.

This will handle the email to jdoe@others.domain.com

Right now the CNAME record is in my primary zone file, and a dig does work.

My question is can I add the new MX record to the primary zone file without screwing up the mail.domain.com mails?

If I can where do I add it.

I have already tried setting it up as a subdomain, and that did not work.

I have not been provided with an A Record.

[Roxoff]

You shouldn't be using a CNAME for your MX record. Even Microsoft advise you not to do this.

[scathefire]

you'll have to set up another domain in your case. You can't query that DNS server about a domain or even a subdomain that it has no idea about. Probably need to add inside your config file something like:

zone "other.domain.com" IN {
type  master;
file "path/other.domain.com.zone";
}

[vern]

I understand that one needs an A record, and not just a CNAME for an MX record. However Microsoft did not provide one, however I did try to use the IP as the A record when I did the "dig" I also have tried using a sub-domain, when I do this, I can only send mail using the IP address, this may be caused by the fact I do not host the sub-domain.

What I want to try next is to add the following to my primary zone file:

$ORIGIN others.domain.com.
IN MX 10 ##########.mail.outlook.com

Will this help?