Create a Task in 1&1 WebMail
First, log into the 1&1 Webmail 2.0 interface at https://email.1and1.co.uk/ using your full 1&1 e-mail address as the username and the account's password.
Click the Tasks button at the top-left of the Webmail window.
Click the New button at the top left of the Webmail window.
A new window opens to enter the task details. Enter the new task information such as start and end date, priority, etc.
Enter additional information in the Details, Participants, or Attachments tabs. When finished, click the Save button at the top-left of the window.
Once the task has been saved, it can be viewed back in the main Webmail window.