phishee <phishee@sbcglobal.net> writes:

>What's the purpose of those semi-coherent or blank body e-mails that
>slip past spam filter's? Are they just looking for a reply
>acknowledgment, thus verifying a valid e-mail account? Or is there
>something more serious going on?

Maybe it is someones briljant idea on stealthy communication.
Encode your message using semi coherent plaintext and than send it
to a few milion people including the target. If some bad guy is
monitoring the targets e-mail he will think its just spam as he
probably received a copy himself in his private mailbox.
I cant get my mother to understand how PGP works, but she is quite
able to communicate rather incoherent. Maybe I could ask her to use
mass mailing, that way she does not even have to remember my e-mail
adress anymore;-)