How to setup an IMAP email account on your iPhone
IMAP (Internet Message Access Protocol) is a standard email protocol that stores email messages on a mail server. IMAP is an application layer Internet Protocol using the underlying transport layer protocols to establish host-to-host communication services for applications.
Here you can refer the below procedure to setup an IMAP email account on your iPhone
1) Go to Settings icon
2) Then select Mail
3) Select Add Account
4) Then choose Other
5) Press Add Mail Account
6) Enter the Name, Email address, and Email password of the email account you’re adding
7) A Description will automatically appear, but you can change it if you like. When finished, press Next
8) Ensure the IMAP option
9) Next you have to enter your Incoming Mail Server settings. Enter the Host Name, User Name and Password for the Incoming Mail Server
10) Next, enter the Host Name, User Name and Password for the “Outgoing” Mail Server
11) When finished, press Next
12) Then press Save
13) The IMAP email account has been setup on the iPhone