First, you can use the +tag functionality of email to sort stuff. Second, Gmail and every other email provider, together with my beloved thunderbird have optio

First, you can use the +tag functionality of email to sort stuff. Second, Gmail and every other email provider, together with my beloved thunderbird have options to set rules to email that do different stuff on an email based on conditions like: if subject contains "hi, hi", send to spam if email is to gostsamo+paypal@example.com and body contains "card removed", send to trash