For gTLDs such as .com, .net, .org etc., you as the customer will fill out a Form of Authorisation (FOA) to approve the request of your domain name for transferring. 1&1 will send an E-mail containing the FOA to the domain owner (Registrant-c/Admin-c*) listed for the domain to be transferred. The E-mail contains a link to a website where you can accept or refuse the transfer. This leads to the following 4 possibilities:
If the domain owner has yet to approve the domain transfer, then it is possible the approval e-mail was filtered to the spam folder. If the owner is still unable to locate the approval e-mail then it is recommended that the owner check the WHO.IS database to see if the domain contact e-mail address is current and update it if need be. Once the correct e-mail address is confirmed, then you will want to contact us to resend the FOA via e-mail.