I think gmail has one of the best user interfaces of any email program I’ve ever tried. Actually I think it’s the best, but I’m leaving myself open in case I remember one that I tried a long time ago and forgot about. The whole reading your mail crap is ridiculous, because there just isn’t enough time in the day to read everyone’s email, even if you wanted to sift through a million emails about stomach troubles, god’s plan for kittens, and OMGWTFBBQ. If you want no one to be able to read your email, encrypt it, and make sure the receiver knows how to keep it secure once it’s received. If you want to make extra sure, don’t send it.