Now the only email that comes there, ever, is that mail.
If that email ever becomes a spammers send address, go into your cpanel and forward it to the federal spam reporting address.
Since it was a catchall forward you didn't have to go make it, and it was 1 step to stop the spam and send all the future spam into the database used to prosecute spammers.
Small claims is fun too some guy makes a living doing that.
I give people the benefit of the doubt and hit their unsubscribe one time to see if they're compliant, if I get a 2nd email it gets the permanent forward.