Bennett Todd had these conditions for identifying mail that should not
generate vacation replies:
* !^Approved-By:
* !^BestServHost:
* !^FROM_DAEMON
* !^List-Id:
* !^Resent-Message-ID:
* !^Resent-Sender:
* !^Sender: .*-errors@
* !^Sender: owner-
* !^TOnev(_at_)bostic(_dot_)com
* !^X-.*-List:
* !^X-Authentication-Warning:
* !^X-Listprocessor-Version:
* !^X-Loop:
* !^X-Mailman-Version:
* !^X-Sent-To:
* $^To:.*$LOGNAME
I'd like to recommend moving the last one to the top in the name of effi-
ciency, as it will eliminate the largest proportion; then !^FROM_DAEMON
should be second. Also, !^List-Id: would be more comprehensive as just
!^List-, so that it could catch any RFC2369 header; and Mailing-List: needs
to be checked for as well.