> also for sendmail users, note that by default sendmail is set up
    > to do an identd check on incoming connections. this really slows
    > things down when its always waiting for timeouts on sites which
    > dont run an identd server.

    Don't they get a simple `connection refused' ?
    I'd only expect a timeout on machines that are down.

    > there is a config option (forget exactly what at the moment) to
    > disable this silly overhead.

    % grep -i ident /etc/sendmail/config.m4
    define(`confTO_IDENT', 0s)