Just wanted to give some constructive feedback. The new webmail interface, while it looks nice, is slower than the old interface. When deleting email it takes a long time to update my list of emails. The trash number increases but the emails I just deleted are still there in the list. I haven't found a way to get rid of the preview once I've clicked on an email to read. There is no way to make the columns smaller.
I agree, they certainly didn't do enough testing on this. I have the same issue with deleting or moving emails. If I put a check mark in a few emails and then click delete or move and answer yes it goes back to the main email list but it is not really done deleting or moving the emails yet. If I click on another email it will delete or move that one too. The other problem I have is when I try to look at an email the preview comes up blank about 90% of the time. I have always show images checked and have switched back and forth between HTML and text but it doesn't matter. You need to go back to the old interface. It was very slow but at least it only had 1 problem.