The images used in this guide reflect the iOS 9.1 operating system.
Step 1
Find and click Settings on your iDevice.
iPhone home screen
Step 2
Scroll down and select Mail, Contacts, Calendars.
Settings menuScroll down and select Mail, Contacts, Calendars.
Step 3
Select Add Account...
Mail, Contacts, Calendars screen
Step 4
Scroll down and select Other.
Add account screen
Step 5
Select Add Mail Account.
Other mail account screen
Step 6
Enter the name you wish to display to others when sending mail, your full e-mail address, and the password for the e-mail account. The description will mirror the e-mail address by default, although you may change it to whatever you like.
New account screen
Step 7
Tap the Next button.
New account screen
Step 8
Ensure that IMAP is selected at the top and that the name, address and description have been carried over.
Scroll down and enter imap.1and1.com in the Host Name field and your full E-mail Address in the User Name field under the Incoming Mail Server section.
New account screen
Step 9
Enter smtp.1and1.com in the Host Name field and your full E-mail address in the User Name field under the Outgoing Mail Server section. Enter the Password for the E-mail account.
New account screen
Step 10
Tap the Next button.
New account screen
Step 11
Turn Mail syncing ON. Optionally, you may also turn on Notes syncing.
Sync with IMAP
Step 12
Click Save to complete the setup of your 1&1 Mail Basic account on your iPhone.
Accounts overview