Unfortunately, there's not really a good, widely used license that does what you want, mostly because you run into problems pretty quickly based on derivative works with what you want. Let's say somebody merges your email client with a browser - can they call that by a different name? Can they sell that?
Anyhow, I'd suggest looking at looking at the Apache or BSD licenses (if you want the broadest use) or the GPL (if you want to ensure that modifications to the code must be distributed with any binaries made from the code). Licenses are a bit of a pain, but you can just pick one of the common ones and it'll really help adoption.