Delist this person: From: petsupermarket

[Bruno Wolff III]

On Wed, Mar 15, 2006 at 11:56:49 +1100,
  Steffen Kluge <kluge at fujitsu.com.au> wrote:
> 
> What we are proposing is avoiding to put list members' real email
> addresses into the "From:" headers of list email. Obviously those real
> addresses are essential for submitting and receiving posts, hence
> submitting or subscribing under a fake address isn't an option.

No they aren't. Most mailing list software uses the envelope sender address
to check whether or not someone is allowed to post. The address in the
from header does not need to match the envelope sender address.