Any good leftwing email lists?

The dingdongs I live with keep sending out mass e-mails without concealing the recipients and I want to sign up a shitload of randos for communist propaganda. Does anyone have any email lists they can recommend? The only one I know of is the PSL’s. I know email is, like, so last century but plenty of people are still forced to use it.

And if nobody has any to recommend then fuck it, I’ll do this shit myself!

Edit: it was the gym teacher who sent out an email to everyone at the school without concealing the recipients lol.