html - Provide a link to allow users to email our company even if they do not have outlook/outlook express installed -

we want put link on our site "subscribe", when click link href

href="mailto:subscriber@org.com&subject=i want subscribe?body=whatever" 

this works great, it's super easy too, problem not have outlook/outlook express installed.

without real development of new features possible make work gmail/yahoo/aol/etc.... email users?

the mailto url scheme works in browsers , in email clients support it.

in essence, when clicked launch default email client on computer , set address, subject , body.

you can't make work in web based email client, since can't set default email clients.