Theo, I do NOT even try to "recommend" you or any other OpenBSD devs or actually anyone reading this mail the one true way of solving the problems. Don't do any advocacy, even though it may look like that I do. And of course you are perfectly right that there are no diffs in mail. The sole puprose of my initial mail was pure curiosity resulted in a question. That's it. As I couldn't find anything related in the archives I simply asked here. I thank everyone for time spent on me and consider the question closed.
Regards, Hans.