HTML5 for compose new mail message

It should use whatever the user's default web mail program is.  Assistance is greatly appreciated.
Ted PennerSoftware Solutions ArchitectAsked:
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Dave BaldwinFixer of ProblemsCommented:
HTML5 is not supported in Microsoft's desktop Outlook email program because it use Microsoft Word for HTML support and Word is still stuck on HTML4.  Doesn't even recognize XHTML.  Web mail services like Google frequently strip off the headers so your email can't interfere with their web page which means your HTML5 DOCTYPE won't be part of the display.

HTML email is still largely crippled and not up to current standards.  Some links:

For CSS support in various email clients:
http://www.campaignmonitor.com/css/

Coding HTML email:
http://www.sitepoint.com/code-html-email-newsletters/

An email preview test site:
http://www.emailonacid.com/
Gregory MillerGeneral ManagerCommented:
Can you elaborate on your project just a bit?
Are you creating a browser page that you want to trigger a new email?
Are you creating an email with HTML5 content?
Give some example of what you have currently that does not work...
Ted PennerSoftware Solutions ArchitectAuthor Commented:
Yes,

I am trying to create a link that has exactly the same effect as the "compose mail" button does in Gmail for instance.
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Gregory MillerGeneral ManagerCommented:
will "mailto:xxx@yyy.com" do what you want or did you need something with more gusto
Ted PennerSoftware Solutions ArchitectAuthor Commented:
that may work. What if I wanted to insert some blank lines, some lines of text, and return the cursor to the top?
Gregory MillerGeneral ManagerCommented:
Not to certain that is possible. You can only go so far in the control of content on the client side. HTML and other scripting standards, including JS severely restrict client side access where abuse could be exploited.
Gregory MillerGeneral ManagerCommented:
of course, just after I say that I found this link.
http://www.labnol.org/internet/email/learn-mailto-syntax/6748/

Test it out, I do not know if it works or not. I am still doubtful you could move the cursor back to the top of the message but the rest is a lot further down the road than you started.
Gregory MillerGeneral ManagerCommented:
Here is another really nice link...
http://www.angelfire.com/dc/html-webmaster/mailto.htm

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