On my list, we are having a problem with some mail not being sent
until listserv is restarted. The problem begins when sendmail rejects a
block of email; the error message always is "Unspecified error (450) -
See RFC821 et seq." These messages then remain unsent until we
manually restart listserv.

Two questions come quickly to mind:

        o Any insight into why sendmail is rejecting some messages?

        o Any insight into why listserv won't automatically try to
                resend those messages?

Doug