On Thursday 29 Jul 2004 9:06 am, Jasmeet wrote: > I think the only drawback of Direct-to-mx mailing is that reverse DNS > lookups would fail and mail server which have been set to perform that > before accepting mail would throw you out. But you face the same wall when > you use VSNL/III party mails server to relay mail for your domain. Pardon > my ignorance, could you explain why direct-to-mx mailing is stongly > discouraged?
That is no drawback. Many mailservers round the world still do not rely on reverse dns for screening mail. Apart from that, most of the decent ISPs have had reverse dns for even their dynamic ips for a long time. direct-to-mx makes it easy for a person to get a throwaway ISP account, run a mass mailing software on the dialup, spam a million email addresses and vanish. Since there would be n number of domains, the number of mails to each would be shared, and the unusual mail traffic might not be noticed by anybody. When sending through your ISP mail servers though, all teh mails would be forced through a single mail server. A simple mail rate control on this mail server could either suspend an user after too many mails/hr, or impose a reasonable mail acceptance rate which would make the cost-effectiveness of spammers hell but sparing the normal user. Also, an ISP can immediately find out unusual mail activity and take action against the spammer then and there, instead of waiting for the spam reports to pour in. - Sandip -- Sandip Bhattacharya sandip (at) puroga.com Puroga Technologies Pvt. Ltd. Work: http://www.puroga.com Home: http://www.sandipb.net GPG: 51A4 6C57 4BC6 8C82 6A65 AE78 B1A1 2280 A129 0FF3 _______________________________________________ ilugd mailinglist -- [EMAIL PROTECTED] http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/[EMAIL PROTECTED]/
