Re: Email servers

> If I create a modified tarball of qmail and make it available for free on my web site, then there is no trade inveolved.  But clearly I would be distributing, and violating Dan's copyright.
Perhaps so. 

But you can install and modify qmail on a SERVER and then you can sell
the server because djb cannot dictate what you do with your property. If
he had a clause that stated that his licence must be imposed on the
buyer then it would be, but that would not affect your ability to sell
your property, and if the software was legally installed on your
property then it would be legally installed when you sell it to the
buyer.
All my own opinion. 
- Andy