Hello,

I have gone through all the setup instructions, and a few hundred google searches, but I am caught up on how to configure the DNS settings in the Linode Control panel.

I have a list at lists.(my domain).com

The DNS settings currently are

(domain.com) - Preference 10 - Subdomain (blank)

I am experienced in normal BIND entries, but I don't know how to configure it in the linode control panel

Do I put "lists" in the "subdomain" field, or do I made the subdomain as a separate MX entry?

ie:

lists.domain.com - Preference 10 - Subdomain (blank)

I've tried both with 5 minute TTLs and mail is not reaching the server. (nothing in server error or mail logs)

email sent to just domain.com reaches the server fine, so I know its just the subdomain setup that is at fault, but I'm at a loss how to do it in the GUI linode manager.

Thanks for any advice.

By hiding your domain name, it's difficult for us to know how you have things set up.

As a guess, you could do one of the following:
1. Create an MX record for lists.domain.com, leaving the target blank (which would point to domain.com, which is supposedly a valid name for your Linode).
2. Create an A record for lists.domain.com, filling in your Linode's IP address.

In either case, someone sending mail to an address at lists.domain.com should see it delivered.