“One of the keys to e-mail is the header information, which can be checked out by experts to see if it’s real or made up.”
... and can be tracked back ... negating the anonymous concept ... duh
You said — “... and can be tracked back ... negating the anonymous concept ... duh”
Not the server information, minus the originating IP#. You might get it to a particular server in a bank of servers — but that’s not going to take you to a particular computer or user.
And, besides that, the “receving end” will be important, too — but we know who the receiver was, so that should not present any problem with the full information for the receiver. This will also verify if it’s a real e-mail. Also, there are “size parameters” that can be checked to see if this is the actual e-mail that was sent or not. In other words, someone might just grab some headers off another e-mail, instead and paste in made-up words. But, then the size parameters would be different. So, there’s a lot of stuff to check and cross-check.
Regards,
Star Traveler