I had a Yahoo account subscribed to a Yahoo Group. To this day I occasionally get a junk email as a subscriber to this group. I don't know what username and/or email address I used to create that Yahoo account, so I can't log in and unsubscribe myself from the group. The emails are being sent to "firstname.lastname@example.org", not to me directly.
I have a variety of old email addresses that get funneled into my Gmail account. I've tried all of the email addresses that I can remember using, but I can't log in (or do a "forgot my password") at Yahoo with any of them.
Here's a screenshot of today's email with the email header:
You can see there's no indication of what email address it's being sent to.
Any ideas how I can fix this?
Is there any way to contact Yahoo directly?