You could put money on it. Every single morning I open up my email and find a couple dozen emails from companies, news or political groups and some odd ball websites. Delete delete delete. It's hard to find real emails from people whose emails I need to see. All a person has sto do in order to receive a pile of unwanted email is buy something. You buy from one place and every other seller sends an email.
Then there are the weird and unsettling comments to this blog that come in during the middle of the night from people in foreign countries. Delete.