Author: Jakob Hirsch Date: To: Odhiambo G. Washington, exim-users Subject: Re: [exim] Using GeoIP to block spammers - anyone?
Odhiambo G. Washington wrote:
> I have have a server which is where all deliveries are done. This server
> is not advertised "anymore" in DNS, but spammers are still sending to
> it in defiance of my TTL from DNS configuration.
> I know that most of my clients who use this server are located within
> my country (damn Kenya!).
Your customers use this server for relaying? Then you probably identify
them by SMTP AUTH or fixed IPs. That should give you the facility to
block unauthorized senders.