Killing the Email Action Folder
macsparky.com/blog/2016/4/killing-the-email-action-folder
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
Anyway, as of a few weeks ago I removed all of the action folders from all of my email accounts. For the MacSparky email account, I’ve now got the following.