If your account has a Root Domain Pointer (an additional domain that points to your main site), you can activate an alias-based email service for the pointer domain. What that means is any email address on your primary domain will also accept messages sent to the same address on the pointer domain.
For example, let's say your primary domain is primary.com, and you use pointer.com as a domain pointer. If you set up the email address email@example.com, that mailbox will also accept mail for firstname.lastname@example.org.
The mail service for pointer domains is alias-only, so you cannot set up a separate address on pointer.com. Any pointer.com addresses have to point to an email address on the primary domain name. email@example.com will not work unless firstname.lastname@example.org exists.
Note that if the same message is sent to email@example.com and firstname.lastname@example.org you will receive two copies of the message in the email@example.com mailbox.
If you want to enable this setting, please contact us to enable it for you.