When I receive unsolicited marketing email I will often intentionally not unsubscribe and instead set up a rule (now that I know the sender address or some way

When I receive unsolicited marketing email I will often intentionally not unsubscribe and instead set up a rule (now that I know the sender address or some way to reliably identify their spam) to redirect any future messages to someone high up at their company or their GDPR data protection officer.