Steps To Add Your cPanel Webmail To Your iPhone
Step 1: Locate Settings on your iPhone
Step 2: Find and select Accounts & Passwords
Step 3: Select Add Account
Step 4: Select Other from the available options
Step 5: Select Add Mail Account
Step 6: Type in your name, domain email, password, and description (optional). This information will be your Webmail email and password you created from cPanel > Email Accounts. Select Next when done.
Step 7: Make sure IMAP is selected and proceed with filling out the required information. Incoming Mail Server and Outgoing Mail Server should have your Hostname (typically this is mail.domainname.com), User Name (typically your mail address, but can be found from cPanel > Email Accounts > Setup Mail Client) and Password (your Webmail password you set-up when creating your email). Select Next when done.
Step 8: If verification is successful after Step 7, you should see this next screen below. Make sure Notes is turned off and click Save.
Your Webmail should now be correctly configured and added to your iPhone Mail.
How Do I Delete My Webmail From My iPhone?
Navigate to your iPhone Settings App. Find and select Accounts & Password from the list of options. Select your Webmail account now.
You should see a screen similar to below once you select your Webmail account. To delete the account from your iPhone, click Delete Account.