Rule - delete if sender is blank?

[Robert Blackwell]

I've been getting a TON of these new e-mails with viruses attached. The
attachments vary in size but average around 1MB. The Sender and Subject line
and Body are always left empty, the spam filter I use (Pop File) renames the
subject to [unclassified] since it can't catagorize an e-mail with no sender
subject or content body. Usually in popfile I can read all messages in plain
txt form seeing all headers and stuff, but on these particular messages,
there isn't even any header information displayed.

I want to make a rule that just deletes this e-mails, not put them in trash,
just permanently delete them.

Is it possible to make a rule to perm delete message if the senders name or
the message is empty?

 

[Swifty]

Here's a vile solution:
Create a rule that deletes all mail except when the sender contains a, b,
c, d..., z, 0, ... 9
You'll lose a few while you're testing that it works, unless you set it up
to move the mail to a folder, such as "Blank Senders", instead of deleting.