Blocking mail with "reply-to"

[bstone]

I get a lot of spam email with constantly changing "from" and "subject," but always the same "reply-to."

Unfortunately, my usual Mac mail client seems like it won't allow me to block mail on "reply-to" and I can't figure out how to do it with Sonic's blacklisting tool. (Putting the "reply-to" address into the blacklist doesn't work.)

Any tips for how to block email based on the "reply-to" address?

Thanks.

[tikvah]

Good question. I would love to know the answer too.