1.) In settings, please go to Mail, Contacts, Calendars and click onto the account you would like to update.
2.) Your Incoming mail server settings has now been updated. Your new settings will be mail.yourdomain. For example if your domain is nursery.com it will be mail.nursery.com. You will need to update these new settings in the red section below.
If you have changed your email password, you will also need to update it below.
3.) You will also need to apply the same changes to your Outgoing Mail Server settings. This will also be mail.yourdomain (same as the Incoming Mail Server). To do this, firstly click on your Outgoing Mail Server.
Then click onto your Primary Server
In the red section below, you will need to update the Host Name, User Name and Password which will be the same as you entered above.
4.) Once you have completed the update, please save the settings by clicking Done.