I am getting spam to one of my e-mail addresses. The recipient's address, however, only shows an mailing list (I guess), to which I have never subscribed:
I am trying to find out, to which mail address this mail was sent. I am using a catchall
firstname.lastname@example.org address, but I never use that to sign up for any website. Instead, I would use
email@example.com. So now, I am trying to find out, which website gave away my e-mail address for spamming, but I cannot find a way to see the
<culprit>@mydomain.com in the recipient.
I am running macOS Sierra.