According to the information I found it is possible to be just one user with multiple domains.I have a paid subscription, which allows me one user for multiple domains.
I'd also like to receive the mail from my other domains, white.com, black.com, blue.com
They are all verified, If I go to users to add
Cindy@white.com, the system tells me I can't add another user unless I upgrade my subscription.
Can someone please tell me how to go about this? BTW, I've also done the change to the MX entries.