Might want to try asking the question in the Razr Maxx HD forum as there are probably more users there who may be able to answer your question. You're posting in the "Original" Razr forum.
if you are using the Gmail app, under general settings there is an option to Auto-fit messages. Not sure if this is what you are looking for. I do not use the stock email app. For my Pop3 accounts I use Kaiten Mail.