Auto Fill Email Subject and Body
If you're using a list management system that requires specific text to be placed within the email subject or body of your email, this HTML code is for you.
Many times, if you request your visitors to type in a specific email subject or body text in order to subscribe to your publication, they may not type the required text correctly. This mistake will cause you to lose your subscriber, as your system will reject the subscription request.
To prevent this problem, you can create an email link that will automatically fill in the subject line and body when clicked on.
<A HREF="mailto:firstname.lastname@example.org?subject=Your Subject&body=Message for the body">email@example.com</a>