I've solved with the follow entry in to global setting
host_reject_connection
Andrea
> -----Messaggio originale-----
> Da: exim-users-bounces@???
> [mailto:exim-users-bounces@exim.org] Per conto di Balzi Andrea
> Inviato: venerdì 20 maggio 2005 13.14
> A: Exim-users
> Oggetto: R: [exim] Block dialup clients
>
> I want to drop connection from dialup user that initate
> connection like this:
>
> SMTP protocol violation: synchronization error (input sent
> without waiting for greeting): rejected connection from
> H=host6-236.pool217222.interbusiness.it [217.222.236.6]
>
> I've tried your suggestion but it has not worked.
>
> > -----Messaggio originale-----
> > Da: exim-users-bounces@???
> > [mailto:exim-users-bounces@exim.org] Per conto di Jakob Hirsch
> > Inviato: giovedì 19 maggio 2005 21.54
> > A: 'Exim-users'
> > Oggetto: Re: [exim] Block dialup clients
> >
> > Balzi Andrea wrote:
> >