Dynamic hosts should never be allowed to "behave" as mail servers. These hosts are not servers, they are just users with outlook configured with outgoing mail servers as the relay servers of their providers such as mail.gprs.safaricom.com for Safaricom 3G users, which is the case now I believe. -----Original Message----- From: Odhiambo Washington <odhiambo@gmail.com> Reply-to: Skunkworks Mailing List <skunkworks@lists.my.co.ke> To: Skunkworks Mailing List <skunkworks@lists.my.co.ke> Subject: Re: [Skunkworks] Blacklisted mail servers Date: Fri, 30 Apr 2010 09:21:59 +0300 2010/4/30 Alex Kamiru <nderitualex@gmail.com> The ISP should help them setup their mail servers to ensure they adhere to certain standards in their server configurations. That is "service". As a matter of fact, they can also enforce the use of port 587 for mail submission, which will lock our most (if not all) spam emanating from compromised hosts on their LAN. How would a company like Safaricom, Orange or Zain enforce this for all their broadband, 3G or EDGE clients who have no mail servers since they are 'home users' and only use outlook to send emails and they have no technical knowledge so to speak. Dynamic hosts should never be allowed to "behave" as mail servers. I hope you understand what I mean. It's so simple. Any host without proper rDNS (hello name must match rDNS) should not be allowed to submit mail as a server (I mean in bulk). -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ "If you have nothing good to say about someone, just shut up!." -- Lucky Dube _______________________________________________ Skunkworks mailing list Skunkworks@lists.my.co.ke http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------ Skunkworks Server donations spreadsheet http://spreadsheets.google.com/ccc?key=0AopdHkqSqKL-dHlQVTMxU1VBdU1BSWJxdy1f... ------------ Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke