How to delete email account on iphone?

Yes, the emails will be deleted along with the account. This is true for all account types: IMAP, POP and Exchange as well as accounts configured with automatic settings (such as Gmail, Outlook Mail on the Web and, of course, iCloud Mail). read more

How to Remove an eMail Account from iOS. The process is the same regardless of what iOS version you are running, though things may look slightly different depending on the system version in use. read more

If you just want to remove the email account from your iPhone's Mail app, you can tap the green "Mail" switch in the middle of the account page to disable it. read more