Richard wants to know how he can stop all the spam he gets. Leo says you really can't. You can block emails and send the spam directly into the trashcan, but it's like playing wack-o-mole since spammers know you're going to do that and change the emails they send from. They also use spoofing to fool email clients to get past filters and change them regularly. All told, up to 80% of all email traffic comes from spammers.
And get ready, because text messages are the next target. And invitations to Google Calendar are also next, but you can turn those off in Google Calendar settings. And there's little else we can do about it.