Question

Can anyone please tell me, how do I get the default mail client using applescript?

Answer 1

I found part of this code here, ran it on Snow Leopard (10.6.4), and it worked for me.

on run
    set mailClient to getDefaultMailClient()   -- store application id
    tell application id mailClient to activate -- tell mail client to do something
end run

-- Grab id of default mail client
on getDefaultMailClient()
    set prefPath to (path to preferences as text) & "com.apple.LaunchServices.plist"
    tell application "System Events"
        try
            value of property list item "LSHandlerRoleAll" of ¬
                (first property list item of property list item "LSHandlers" of ¬
                 property list file prefPath whose value of property list items ¬
                 contains "mailto")
            on error
                "com.apple.mail"
        end try
    end tell
end getDefaultMailClient