The most important thing is to disallow the combination of SpecialResolving it the way you did in #28118, by making their concurrent selection mean receive both "special notices" and "topics/hashtags you follow" seemed attractive to me at first.
But the more I think about it the more I prefer to remove the "what"/"how" dissonance by making Special Notices Only part of the Message Selection controls.
I would be interested to hear your thoughts on how to handle theThat Actions menu duplicates only the Email Delivery options, so if Special Notices Only is removed from that Subscription panel, then I'd expect it to be removed from this Actions menu also. That would leave both places selecting only "how".
I almost hate to say this, but much the same logic can be applied to the "No Email" selection. It is more of a "what" than a "how" and perhaps should be a part of the Message Selection controls rather than the Email Delivery control. In for a penny, in for a pound.
And at that point maybe I'd put the "what" panel (Message Selection) ahead of the "how" panel (Email Delivery).