Brian W. asks the following great question:
“I’d like to click a link such as “mailto..someone@anywhere.com” and have it automatically open up my web browser to Yahoo mail. Is there a way to set my default email client to my Yahoo mail account? I’d prefer not to use Apple’s Mail client.”
Well Brian, you’re not the only one to wonder. Millions of people use webmail clients instead of Mail or Outlook and the answer to your question is: Yes! It’s very easy to do with a simple and free third party preference pane called Webmailer.

This ability really should be built right into Mac OS X, but until it is, Webmailer works just fine. Installation and configuration is as simple as downloading and launching the app, which will install the preference pane into your System Preferences. You then just select which web-based email you want to use, as you can see from the screenshot below. Be sure to change the default email application from Mail to Webmailer. If you’d like to use a different webmail client than the default list, you can do that too with some minor configuration.

Once it’s configured, clicking a mailto link will load the designated webmail client instead of Apple’s Mail. Enjoy!

Developer home
Download now (Mac OS X 10.4+)

Note: We’re linking to the version of Webmailer for 10.4, but if you have 10.3 there is a version available on the developers site.