Hi Eric; Yes , I think it's not a good idea. are lots of terribly written SMTP servers ( RFCs may be non-compliant SMTP server) out also there people don't know/care.You're right about SpamCop can be FPs. but do SpamHaus use.I personally am using SMTP Gateway ( Postfix, Amavisd-new, SpamAssassin, Razor, DCC, Pyzor,ClamAV ,RBL ) . I also do not use greylist. I do not see any difference with Greylist and Fake MX. Both are causing delays in mail. Remote SMTP server to send the mail again may be prolonged. Unfortunately, I have not had the opportunity to experiment ASSP. One of the three solutions in mind ( MailCleaner, ASSP, Mailscanner ). Another effective solution is to introduce a 3-4 second greeting delay. most spammers do not wait for HELO. A very nice wiki page reference for anti-spam techniques (http://en.wikipedia.org/wiki/Anti-spam_techniques). I wish also spammer would send to all mx address :)
Hi Dan; You'd think her mind would be much better documented :) 2014-04-29 0:44 GMT+03:00 Tonix - Antonio Nati <to...@interazioni.it>: > I don't understand what that has to do with using another fake MX to > capture SPAM. > > Instead, it worth the while to setup such MX only to evaluate if there is > a consistent stream of emails which can be captured and tagged as SPAM > (because they would be 100% SPAM) for improving spam assassin evaluation or > forwarding to capture engines. > > The most annoying SPAM we are having here is 'local SPAM', going to normal > MX: small unsolicited mailing lists which are too small to be catched from > big engines, but still very annoying. > > Regards, > > Tonino > > > Il 28/04/2014 19:54, Dan McAllister ha scritto: > > OK, I'm johnny-come-lately to this discussion, but let me add my 2-cents > worth in here: > > FIRST: Users who want to switch mail providers or mail server technologies > -- but have no changes on the client end are *dreaming*. I tell my > clients that I can minimize the changes, but the more I minimize the > changes, the higher the cost. (It's kinda like buying a new car and > expecting the dealer to move all the crap from your old car into the new > one, including copying the radio station presets and getting all the trash > located in just the same spots -- even though the new car has XM radio and > a glove box, while the old one did not. > > Converting from one mail server type to another can be tricky, and should > be done with great care. Some of the gotcha's: > - When you've switched from one MX server to another, some remote SMTP > servers may still try to attach to the old server > RESOLUTION: Create a forward (or smtproute) on the old server to force > delivery of new messages to the new server > - When you're migrating IMAP folders, there can be different limitations > (some IMAP servers allow a space as the first or last character in an IMAP > folder, others do not. Some allow special characters, others do not... and > so on) > RESOLUTION: Provide a method to allow users to copy their own folders > from the old server to the new (alternatively, you can do it -- but then > you're increasing your workload unnecessarily... or else charge for it. > > There are plenty more, but those are the ones that quickly jump to mind. > > Dan > > > On 4/28/2014 1:15 PM, Tonix - Antonio Nati wrote: > > Il 28/04/2014 18:12, Eric Shubert ha scritto: > > On 04/27/2014 01:38 PM, Hasan Akgöz wrote: > > 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... :). > > > Are you suggesting that there are legit servers that can't handle such a > configuration? > > > > Before I quitted my email service (I migrated to a collegue wich manages a > lot more accounts than me), I was considering to use this way to capture > spam on my servers. > > Only problem I see this high priority MX may be active only if another low > level MX is active, otherwise it will classify everything as SPAM, and a > simple reboot of main MX may be troublesome. > > So, the main problem is to keep this spam MX up only when lower priority > MX are up. > > Tonino > > > > Try ASSP ( Anti-Spam SMTP Proxy Server ). > > > I've looked at ASSP in the past. I don't see a point in having both ASSP > and spamdyke. If someone can sell me on ASSP over spamdyke, I'd be happy to > look at it again. > > Is anyone out there using ASSP with QMT? > > And DNSBL,SURBL,SBL,RBL (zen.spamhaus.org > <http://zen.spamhaus.org> <http://zen.spamhaus.org> and spamcop.org > <http://spamcop.org> <http://spamcop.org>). > > > I presently use: > dns-blacklist-entry=b.barracudacentral.org > dns-blacklist-entry=zen.spamhaus.org > > I dropped spamcop due to problems they've had with FPs. > > Thanks Hasan. > > > > > > -- > IT4SOHO, LLC > 33 - 4th Street N, Suite 211 > St. Petersburg, FL 33701-3806 > > CALL TOLL FREE: > 877-IT4SOHO > > 877-484-7646 Phone > 727-647-7646 Local > 727-490-4394 Fax > > We have support plans for QMail! > > > > > -- > ------------------------------------------------------------ > Inter@zioni Interazioni di Antonio Nati > http://www.interazioni.it to...@interazioni.it > ------------------------------------------------------------ > >
