In Thunderbird, I find the arrows confusing. When I look at a correspondent, I cannot tell if the message is the one I sent to that person (I always copy myself) or the person replying to my message. Looking at the arrows takes time and the direction is confusing. It would be far better to precede the name of a recipient by "To:". In that way, it is obvious that the person is a recipient. In that way, you can get rid of the confusing arrows. Thanks. John Makhoul