I am getting spam emails that have no reply to address so I can't apply rules. Is there anything I can do to stop or just move to junk? It seems I am helpless to prevent these. I don't want to click unsubscribe for obvious reasons.
iMac
OSX El Capitan
Every email has a short summary of where it came from, what the subject is, etc.
But that is the consumer friendly version.
There is a big header behind the curtain that you can take a look at - sometimes called like 'show original' or 'display full email header', etc. Depending on what app you use and which operating system.
The full header usually discloses more details, even if there is a spoofed empty from: (not sure WHICH provider would even ever allow that and doesn't auto bounce it back, but okay.. ) then other patterns from these spam emails might be figured out. But my guess is that the full header will actually have some return address listed.