Updating settings (host name) on iPhone/iPad

Here is how to update your email account settings mail host name on iPhone or iPad:

• Go to settings

• Scroll down to Mail, or in some cases Apps > Mail, (on older phones "Mail, Contacts, Calendars").
  or use Siri and say "open mail app settings"

• Tap on Accounts.

• Select the account you want to work with.

• Tap on Account Settings.

Update the password in both places: Once for Incoming Mail Server, then for Outgoing Mail Server.

Under Incoming Settings:

• Select the host name field .his.com, delete the content and type the new server name.

Under Outgoing Mail Server: Tap on the existing mail server name

• Select the host name field .his.com, delete the content and type the new server name.

• Make sure the username and password field are filled-in.

• Tap Done at the top and let it verify the information.

If you get an error saying the new server name is not responding, check if you have any typo in the information you were updating - retype it carefully.

Once the Outgoing mail server information is verified.
Tap Done on the accounts settings page.