On the other hand, there is some spam which is just trashy and one of the big culprits is property sales spam. I received an email from some dubious crowd called France Leasebacks which irked me. I particularly liked this bit in the disclaimer:
This message (including any attachments) is classified and may be privileged. If you have received it by mistake please notify the sender by return e-‐mail and delete this message from your system. Any unauthorised use or dissemination of this message in whole or in part is strictly prohibited.
What a cheek! There is no opt-out option or any indication why this email is even remotely relevant to me.