This article applies to websites hosted on our newer https://cp.blacknighthosting.com platform.
For how to create an email address on cp.blacknight.com please see here: https://help.blacknight.com/hc/en-us/articles/212519409-How-can-I-create-an-email-address-for-my-domain-
If you have purchased one of our Microsoft 365 plans then please see here: https://help.blacknight.com/hc/en-us/articles/212519569-Office-365-Add-A-User
Log in to your https://cp.blacknighthosting.com account and go to:
Sevices > My Services > Click on your Titan email plan (not on the domain name itself)
Then to create a new email plan click on Email Accounts > Create new email account
For how to access your new email address, the following may help: