1st. USE GMAIL. Then enable ‘SmartLabels’ in Gmail’s labs portion of the ‘Settings’. This alone will cut bulk and spam to next to zero!
You can set up Gmail to retrieve just about any other type of email account you have. Read about that here.
If you don’t want to use Gmail the next part is still just as important.
2nd. DO NOT click on the ‘unsubscribe’ anywhere within a spam email. That just lets the spammer/scammer know that your email account is not only active, but you actually took the time, read and acted upon the email they’ve spammed you with!
Doing that only means your email address just got put onto the priority confirmed working spam list!