On your iPhone/iPad go to Settings from your home screen
Select Accounts & Passwords
Select YOUR EMAIL ACCOUNT
Select YOUR EMAIL ACCOUNT again
Scroll down to the Outgoing Mail Server & Select "SMTP"
Select the mail server listed under the "Primary Server"
Change Authentication to "Password"
Set the hostname as "server.solardns.com" replacing server with your server e.g. hyperion.solardns.com (This is included in your welcome email or you can check with support)
Set the server port to "587"
Use SSL should be switched to "On"
Set the username to your full email address "eg. name@yourdomain.com"
Set the password to your email address password
Click DONE on your top right hand corner. - ENSURE THAT YOU DO NOT SKIP TO THE HOME SCREEN AFTER CLICKING DONE, THE NEXT 2 STEPS WILL HARD SAVE THESE SETTINGS -
Click ACCOUNT on your top left hand corner.
Click DONE on your top right hand corner.