For domain owner, you will receive the access details to log into your domain access (Postmaster login details) and can start create all user account. Guideline as below:
1) Please log into the postmaster account as link per given:
https://mailservername
(Mail server name will be given by our Support)
2) Enter the details of postmaster access as per email from our Support.
3) Following the number on below picture,please navigate to Domain Settings -> Accounts -> Click NEW
4) Once appear the New User interface as above, please fill up Username and Password. The make sure to click 'SAVE'
*NOTE: ximplify currently require passwords to be a minimum of EIGHT [8] characters in length with at least ONE UPPERCASE LETTER, ONE LOWERCASE LETTER and 1 NUMBER in the password.
5) Kindly repeat the steps for another user of your domain.