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292424Re: Enabling Postscreen'

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  • LuKreme
    Apr 7, 2013
      In our previous episode (Sunday, 07-Apr-2013), Wietse Venema said:
      > LuKreme:
      >> In our previous episode (Saturday, 06-Apr-2013), Wietse Venema said:
      >>> LuKreme:
      >>>> I've just updated my postfix install to 2.8 patch 14 (from 2.7)
      >>>> and am looking into enabling postscreen. I've read the
      >>>> http://www.postfix.org/POSTSCREEN_README.html document, and it
      >>>> looks like I should replace my old rbi checks with the new
      >>>> postscreen_dnsbl_sites value, but what about some of the other
      >>>> checks?
      >>> I suggest you don't change your existing spamblocking features.
      >> Really? What is the advantage of polling the RBL at spamhaus again?
      > You're not polling it again. The information is cached in the DNS
      > server. And in the case that the DNSBL lookup result came too late
      > for postscreen, it may still arrive in time for smtpd(8).

      Ah, yes, I hand't thought of that.

      >> And aren't reject_unknown_reverse_client_hostname and
      >> reject_unlisted_sender redundant in smtpd_recipient_restrictions?
      > Please RTFM. postscreen doe snot implement every smtpd feature.

      I honestly did, and I thought those in particular where ones that would be redundant. I will leave it as it is, thanks.

      A good friend will come and bail you out of jail but a true friend will
      be sitting next to you saying, "Dang, that was fun."
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