MacMail app won't delete the emails on my GMAIL server
I tried just about all the IMAP settings I can think of, but somehow the Mac Mail app just looks like it is deleting email, but if I keep the browser open to see my Gmail account, I can see that never does it trash those items on Gmail, and sure enough the emails are brought back to MacMail appearing there again.
On MacMail, prefs are: Prefs>Accounts>Mailbox behaviours: Trash Mailbox: google, erase deleted messages: when quitting mail. (I hate to have to quit all the time to trash messages, but I don't want to wait a day. I want them gone now.
On gmail IMAP is enabled, "WHEN I make a message in IMAP as deleted: Auto Exunge is off - wait for the client to update the server (If I left auto-expunge on - Immediatey update the server (default), then the message is only allowed to be archived in the server b default.
However it doesn't work with either of those setting in Gmail in any event.
I don't understand how something this important wouldn't be able to work without these headaches.
iMac 27″, macOS 10.12