How do I define a subject for a mailto link?
You can’t, at least not in a reliable, cross-browser, cross-platform way. Allow users to supply their own subjects or use different email addresses for the various subjects you expect to receive email about (i.e. webmaster@domain.com, feedback@domain.com etc.). The other alternative is to create some form of script, using a server-side language such as Perl or PHP, that sends mail to your address using pre-determined or user-specified subjects. If you must define a subject via a mailto link, then use the following format: email me. In most modern browsers, this link will launch your email client with a new email addressed to you@example.org with the subject Hello. However, this technique will reportedly prevent older browsers from sending mail to you at all, so you’ll have to decide for yourself whether or not it’s worth the risk.
