IMAP email trying to resolve to local .com AD server.
I have a problem. I've installed a new 2012 server with Active directory, DNS and file server. I did a migration from server 2003 to server 2012 to be more precise. Now I have a email problem.
One client computer is trying to access email via IMAP but cannot due to it trying to resolve to the local .com (which is the same domain name as there website. e.g mydomain.com for both the hosted website and the local server.) server instead of going out to the internet. Is there an easy way to make DNS forward this out? I've never really worked with DNS before. I know what it does but never done anything like this before.
What exactly is the way the IMAP server is looking for? something like www.domain.com or imap.domain.com etc?
How many machines connecting to the mail?
Who handles the external DNS?