Spoof Spam

How do I stop spoofed spam? Multiple e-mail addresses that I've never used for any submissions anywhere are receiving e-mail that is spoofed so I cannot see who truly sent it without sifting header data. Many of them even come *from* the e-mail address they are spamming. This is my inbox this morning, from my own e-mail address:

Notice the next e-mail is from ... no one? With no subject line? They even read as to no one:

Isn't that beautiful?

How can this be stopped?