There is a special place in hell reserved for people who try to cram the entire contents of an e-mail into the subject line, such as:
Tom, I need the specs immediately for the media buy that starts on the 20th or we could experience some majo"
Subject fields can't be that big. So take a deep breath, click on the part of the e-mail that says "Message Body" and quit being lazy. And if it's something that's only 2-3 sentences and urgent, that's what IM is for. Or the phone. Or any of the krillions of other ways you can reach me.