This is the message I received from 1and1 hosting.
This is an update with regard on our conversation about the 3rd party application you used to edit your websites. You need to contact the developer or provider of your Cornerstone Software to clarify what settings you used to configure it and connect to your 1&1 Shared Server. We appreciate your patience and time.
If you still need further assistance, I would suggest that you contact us by phone at 1-866-991-2631 so that we can help you with a solution much quicker than via e-mail. Alternatively, we could try to contact you at a time that’s convenient, by submitting a call back request using the link below:
1&1 Internet Inc.