Perhaps you need to disable the on-line check for windows mobile users, since they are using freeware now. having it check your website is rather useless.
I think that the verification should be completely different.
It is totally unacceptable that your mail client cannot retreive mail when lonely cat servers are offline. Yesterday I wanted to order many of the lonelycat apps for my new Nokia E6. I bought LCG Jukebox, LCG Photobook, and X-plore, BUT I left out Profimail, just because I read this topic. And I will certainly not buy and use Profimail untill this issue has been resolved.
Protecting your software is okay, but please don't bother your paying customers with it.
ps LCC Jukebox is great!