Making a Field Appear Required on a Visualforce Page

I’ve been working on a app with a requirement the user must enter a valid email address on a Visualforce page by clicking a button instead of leaving the edit page to find it. It seemed simple enough.

Rebuilding the Apple Mail Envelope Index

Some time ago, I set up my Gmail account in Apple Mail to copy over messages which were not sent to my IMAP account. I’m one of those guys who likes to have everything all in one place at my finger tips when I need it. But something wasn’t quite right.