It was not intentional but well spotted!

(Seriously, I really like Modest. I like the way it organizes stuff neatly in folders, the way they are organized naturally. I like how it does not pretend to be something else, like e.g. Jolla's email client does. I like how it deletes emails immediately. The only two things I do not like is the bug with accented characters in names and the bug mentioned above, with the sent emails not synchronized automatically.)