Enhance Composing functions
There should be a few more composing features such as 1) more robust font selection; 2) indent feature; 3) spell check feature. These are things that are available in any basic email program. Also, the ability to color/highlight text, embed images, and emoticons would be desirable as well.
More robust font selections should be considered as this is something every basic e-mail program has. Spell check feature is a necessity as well.