> From: "Ian P. Christian" > > | Many small companies we work with haven's PTR records for > > | IP-addresses of mail servers. > > If you're with a company that doesn't have control over your own rDNS, > you should NOT be sending mail out onto the internet IMO, the chances > are your ISP provides a relay for you to do this.
No, in such cases the monopolistic (former state) ISP don't provide a relay, or the relay is in every blacklist. I repeat: they can't care less. > We've had very few issues with blocking outright on rDNS Don't conclude that everybody is like you. > If all of > us larger operators start being stricter, we can pretty much solve the > botnet generated spam Spammers already use webmails and stolen passwords more and more. Blocking botnet generated spam is much easier - by means such as greylisting (instead of denying) mail from hosts without rDNS. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
