Multiple SMTP domains and MDM

If you have more than one SMTP domain in your internal exchange environment and want to be able to enroll devices from all of them (saving the users from entering the serveraddress), here is what you need to do:

• Add a secondary IP to the external NIC of the ISA server (on the nic or in ISA NLB setup - virtual IP).
• Add mobileenroll..com - ie. mobileenroll.domain.com and point it to your virtual IP (mobileenroll - a record - secondary IP).
• Import a certificate to your isa server (if you are running an array, import it to all), with the name of the mobileenroll.yourdomain.com
• Create a new listener for the new domain and point it to your secondary IP and new certificate
• copy your exsting rule for the working mobileenroll and attach the new listener

Repeat this process for each SMTP domain your want to do domain enrollment for.