Marten Lehmann wrote: > Hello,
>
> today I accidentally noticed an smtp server, that blocks anonymous senders:
>
> mail from: <>
> 501 Anonymous Senders Prohibited
>
> Is it possible to configure this similar with exim? I guess there is no
> actual reason to send emails without a sender. Even cronjobs are using
> something like user@hostname. I guess this might catch a lot of spam,
> wouldn't it?
>
> Regards
> Marten
>
