Below is the step-by-step guide on how to configure
1and1 email settings iPhone:
• Select Settings from the drop-down menu.
• Select Mail, Contacts, and Calendar from the drop-down menu.
• Select Add Account.
• Add a new email account.
• Put your name in the Name field, your email address in the E-mail field, and your password in the Password field. You have complete control over the description.
• Choose POP3 or IMAP as desired setting. After selecting desired setting fill in the required information and click save.
• And there you have it you have successfully configured 1and1 email settings, iPhone.