Um, GoDaddy. I've seen this issue in debug logs -- the server just doesn't want to return some messages.
Their servers are actually load balanced (multiple servers behind same imap.securemail.com name, or whatever it is), and some work better than others, but I don't have any up-to-date knowledge on what the better ones are.
Please contact me for a refund at kmansoft / gmail / dot com and include your order number or the @gmail account under which you made the purchase.