>As Ed Rauh pointed out moments ago, RTFM... I guess I had some sort of mind block, that those options were local to that message, not global.

It is an interesting comment. When we moved some useful options from Account Configuration to here to have a better flexibility of turning them on/off, I asked myself the same question. This is also why we put a line between the options related to the message being read and those options which are global.