Hi Jack,
thanks for your feedback.
Honestly, I haven’t used Mail Drop in the last year or so.
Thanks to your question, I —briefly— tested the Workflow now, and indeed it doesn’t seem to work anymore.
I noticed one thing:
When I ran the Workflow, the minSizeKB variable by default was not present in UserDefaults (i.e. in Mail’s plist file). IIRC, this was never the case at the time when I’ve written the Workflow and the KM macro. (Otherwise my Workflow would never have worked correctly, because it starts with reading the variable.)
What I think is that Apple has removed the variable from UserDefaults. Maybe it’s a server-side setting now, or it is just a hard-coded, unchangeable value now, I don’t know.
Of course, we can still write the variable and a value to UserDefaults (with defaults write […]), but if the variable is no longer used by Mail, then it will have no effect at all.
Let me know if you find out anything more.