The mailto is a cheap and rather old way to add email facility on your web site. A professional approach would be to use forms instead, but forms require knowledge of server-side scripting. However, mailto can be made slightly more professional if we use it properly.

In its bare form a mailto looks like:

<A HREF="mailto:manish@simplygraphix.com">Send me an 
email</A>

And this is displayed as

Send me an email

When you click on the above link, your default email client will be launched (if you've configured one). You'll notice that the Subject and Body fields of the email message are empty.

With mailto, you can include a default subject and body for your emails and make it look a little more professional. Not only that, you save your visitors some typing.

<A HREF="mailto:none@none.com?subject=Feedback for 
webdevelopersnotes.com&body=The Tips and Tricks section is 
great">Send me an email</A>