Re: [exim] exim ACL condition

> From: Rainer Sigl

> I'd like to write a conditinal ACL but I can't find the right expression:
> All mails to port 465 shall be delivered if the sender is within
> +local_domains unauthenticated.

Bad idea. Then a spammer can send unlimited spam using your servers's
hostname as sender domain.

If you are an ISP then specify your IP-address ranges in relay_from_hosts.