this solution looks cool , I was thinking of putting another server with a specific account and through transport map from the gw send e-mail server to another server with a specific account.
I was looking for how to handle this with postfix 2015-02-17 13:14 GMT-06:00 Reindl Harald <h.rei...@thelounge.net>: > > > Am 17.02.2015 um 20:03 schrieb ricky gutierrez: > >> Hi , I have mounted one gateway filtering me all spam in the business, >> I have to postfix + centos6.6 + amavisd-new 2.8 + clamav + >> spamassassin, currently captures 65% of spam the other 35 gets >> through, I want to improve the effectiveness making a Bayesian db. >> >> I am not an expert in postfix and spamassassin, I was thinking to >> leave a copy of all messages for the domain and classify emails as >> spam and ham, and then build the db, the problem is that postfix is >> only a gateway and leaves no emails locally! , >> >> someone has faced this type of situation? > > > update to Postfix 3.0 and use the new BCC feature for header_checks on the > *downstream servers* to use that as training data *but* be sure you place a > sieve rule there to discard all the BCC's to users without a explicit opt-in > for *legal* reasons! > > and protect that BCC account from receive mails on the MX! > _________________________________________________ > > the sieve rule just lists the subscribed Users in the To/Cc-Header with > 'keep' and the elseif 'discard' > > if you want to optimize that add your own enevlope-headers on the MX which > covers also BCC and can be used by the sieve-rules instead From/Cc > http://comments.gmane.org/gmane.mail.postfix.user/193456 > _________________________________________________ > > main.cf: > header_checks = pcre:/etc/postfix/header_checks_smtpd.cf > nested_header_checks = > mime_header_checks = > > /etc/postfix/header_checks_smtpd.cf: > /^X\-Spam\-Flag: Yes/ BCC spamfil...@thelounge.net > /^X\-Spam\-Report: Flag: No.*(BAYES_80|BAYES_95|BAYES_99)/ BCC > spamfil...@thelounge.net > /^X\-Spam\-Report: Flag: No.*(BAYES_50)/ BCC > spamfilter+inbox...@thelounge.net > > Spamassassin local.cf: > clear_headers > fold_headers 1 > add_header spam Flag _YESNO_ > add_header all Status _YESNO_, score=_SCORE_, tag-level=_REQD_, > block-level=8.0 > report_safe 0 > add_header all Report Flag: _YESNO_, _REPORT_ > rewrite_header Subject [SPAM] > -- rickygm http://gnuforever.homelinux.com
