eM Client[1] is an excellent, rather less known client for Windows systems. It supports *Dav out of the box which is rather rare on Windows.<p>[1] <a href="http:&#x2F;&#x2F;www.emclient.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.emclient.com&#x2F;</a>