Best way to whitelist mailing lists

> > From: Tim Wicinski <tim@meer.net>
>
> > ...
> > env_From: <crypto-gram-return-54-tim=meer.net@chaparraltree.com>
> >
> > I was wondering if it would make more sense to use the 'HELO' field or
> > the IP address (if it's a regular mailserver and not a chain of them).
>
> Those make sense, but the mail_host value found in the dccm log files
> might be better.

Wildcard or Regex whitelist options might help in this situation, or
additional whitelist checks on the domain portions of env_From, env_To, and
From...

Roy