Inept Email

I wrote several emails today, research-related. I was left with the feeling that somehow I'd forgotten bits, that I remembered just after sending the email. And then doubting that I'd said what I wanted to clearly. As far as I can tell, the emails weren't that bad given the responses, but it was a nervous time while waiting for those responses and thinking that maybe they'd make fun of my crappy emails.

Anyone know a way around this? Approved email writing style, maybe a program that reads the email over and says "Nice work, says what you want it to, and clearly" so that I don't get worried about them?