To transfer a domain away from 1&1, the following conditions must be met:
Before transferring a domain away from 1&1, please backup all website files, databases, e-mail accounts, and take note of any DNS settings or subdomains created under the domain as no data or configuration will transfer with the domain!
It is suggested to initiate a domain transfer at least 1 month before the domain's expiration to allow ample time. Please read how to Check a Domain's Expiration Date to find out when the domain is going to expire.
If at any time, you wish to prevent the transfer before it has begun, you can simply follow the steps above, but Enable the domain transfer lock in Step 5 to prevent the transfer from occuring.