Question Inbox items deleted from Gmail web interface still showing Outlook (2016) search


Apr 10, 2004
I use the Gmail web interface most of the time, but also have Outlook 2016 open all day, connected to Gmail via IMAP. When I delete a message from the Gmail web inbox it disappears from the Outlook display after a few seconds, but the item is not fully removed from Outlook as it still appears if I perform a search on the Outlook inbox.

Why are these items not being fully removed from Outlook, and how can I ensure that they are?

My Gmail IMAP settings are:
  • Auto-Expunge off
  • When a message is marked as deleted and expunged from the last visible IMAP folder to Move the message to the Trash

My Outlook Advanced settings are:
  • Mark items for deletion but do not move them automatically - UNCHECKED
  • Purge items when switching folders while online - CHECKED