Same issue here

Just an FYI we are building this into core https://github.com/NodeBB/NodeBB/issues/6158, it will deprecate this plugin and 2 forks https://github.com/dangerusslee/nodebb-plugin-category-sort-by-votes-next and https://github.com/jimmykane/nodebb-plugin-category-sort-by-votes-next

@pichalite Yes. I have tested that if the user is not currently online, the user is able to receive email from executing the above code.