I have been using Zimbra Desktop for a few days and really love it. The only problem I have is I cannot figure out how to make it my default email client. Whenever I click on a mailto:firstname.lastname@example.org link, Windows Mail continues to open up. I have clicked on the "Use Zimbra Desktop as default mail application" and now it's grayed out. But I opened Windows Mail and the "Make Default" button is also grayed out?
Something seems screwed up.
BTW, I am running Windows Vista Ultimate.