First login to your dianahost Account. See How to login to your business email account click here
Then go to the business email manage option.
Once you see the business email management screen
Now, Click on “Add User”
Now, Fill up the information as per your needs
Now, Click on ” Add User ” and you are done. You will get your user, password, Settings for Outlook, Thunderbird or any email client.
Webmail URL example: webmail.yourdomain.com