Hi Eric, The first time I heard you specify the subject. I think this method is not a good idea. becuse If you mess around with MX records, you deserve to have lost mails and angry co-workers/customer etc... :). Try ASSP ( Anti-Spam SMTP Proxy Server ). And DNSBL,SURBL,SBL,RBL (zen.spamhaus.org and spamcop.org).
2014-04-26 6:21 GMT+03:00 Eric Shubert <[email protected]>: > I came across a list entry the other day (a linked-in list I believe), > where a mail admin said he set up a dummy MX entry as the highest priority > MX for his domain as an anti-spam measure. I'm not sure I'd want to cause > that sort of overhead to all the well behaved mail servers out there in > order to catch a few spammers. These are likely the same sort of spammers > that graylisting would catch. FWIW, I've quit using graylisting, as it > wasn't worth the inconvenience to me. SamC (spamdyke author) feels the same > way about graylisting, fwiw. > > I commented on the post though, pointing out that many spammers > intentionally target a secondary server (the highest?) in order to bypass > some anti-spam filters, which sometimes aren't implemented on secondary > MXs. This led me to thing about perhaps adding a dummy MX entry with the > highest priority, figuring that may catch some spammers, as legit emails > should never get to that point. > > I should do some analysis of my secondary server, to determine how many if > any spams get through there. Depending on the results, I might try a > high-priority dummy MX record. > > Anyone interesting in doing some research on this? > > Thanks. > > -- > -Eric 'shubes' > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > >
