This hardly provides an adequate answer to Outlook users who are experiencing higher than normal levels of spam. If you use Outlook Web App or a work-email, then you cannot switch based on your suggestion.
Gmailify would be a good option to try, but unfortunately you need an Android device with Gmail app to make use of Gmail's spam filters for Outlook email. Cannot be transitioned over the web version of gmail or iOS.
Even you unsubscribe those unsolicited emails from unknown servers, remember that our information are already been sold anywhere in the internet. We are no safe to hide but instead do not use the internet.
Just be vigilant and make sure to carefully check those hyperlinks and attachment.