I have setup a mail server where the host name is mail.mail-apps.com. I have setup a wild card entry in my DNS for the IP address. The mail cname point to the wild card. I then setup an mx record that points to mail.mail-apps.com
I will have multiple domains that I will point to the IP address of the mail server. so, for example: mail.somedomain.com will point to the IP address of the mail server. In my mail server I setup a domain alias that will pick up the mail.somedomain.com. I can only have 1 IP and 1 HostName for my mail server.
For mail.mail-apps.com and the mail.somedomain.com, how do I setup my SPF records? I am so lost on how it works.
I am using hMailServer on a windows 2008 server.