Create email account in SmarterMail v16
1) Login to the web interface as administrator through URL : mail.yourdomainname.com with administrator username with password
Note: The email account need to have administrator privilege in order to create email account from smartermail
2) Go to the last button of the top panel > Domain Settings
3) Select the Accounts on the Left panel.
4) The message box will prompt out, please insert the detail inside. Once done, Save it.
5) It will redirect to the account summary page, save it again. The email account is created.
Learn more on how to create catch all emails in Smartermail v16.