If you really think I'm going to open an email with the subject heading, "Soporific punish" you are quite mistaken about my gullibility.
I may be gullible when it comes to an announcement about the newest and most delicious chocolate in the world, or an advertisement for a perpetually-brewing coffeemaker, but "soporific punish" will get you nowhere.
In the future, please be more interesting, creative and grammatically correct. Your subject headings are, perhaps, soporific punishment, but they are not making me double-click.
Mrs. Terrific SpamGuard