Below given are the steps to setup
1and1 email outlook
landing page:· In Microsoft Outlook 2016, go to the File menu and select File.· Click + Add Account under Account Information.· Click Next after selecting Manual configuration· After selecting POP or IMA, click next.· More options are available by clicking More options... · Check the box next to the Outgoing mail server on the Outgoing mail server tab.· Go to the Advanced tab now. For the receiving and outgoing mail servers, fill in the information below.· POP SSL Configuration: Go to the Advanced tab now.· Click the OK button.· Click Next, then Finish to return to the POP and IMAP Accounts Settings screen.· Fill up the details for the user, server, and log in