> From the vacation man pages:
> No message is sent if the initial ``From'' line includes the
> string ``-REQUEST@'' or if a ``Precedence: bulk'' or ``Pre-
> cedence: junk'' line is included in the header.
> I thought all mailing lists used the "Precedence: bulk" line...
BITNET lists do not as a rule include Precedence: headers.
> The man entry says nothing about checking the To: line...
This may depend on which version of UNIX you have, but the full paragraph
from the SunOS 4.1.2 man page says
No message is sent if the `To:' or the `Cc:' line does not
list the user to whom the original message was sent or one
of a number of aliases for them, if the initial From line
includes the string -REQUEST@, or if a `Precedence: bulk' or
`Precedence: junk' line is included in the header.