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    Postfix - antispam and relay package

    Scheduled Pinned Locked Moved pfSense Packages
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    • T
      trinidadrancheria
      last edited by

      Marceloc are you the one I talk to about patches for PF sense postfix?
      I am working on a patch to implement the DNS blacklist to the package through a patch with its own list section, but it would be nice if we can add it right to the next version.
      Once tested, can I send the patch to you to see what you think?

      Also is there a official place to get full documentation on how the patchfile syntax?

      1 Reply Last reply Reply Quote 0
      • S
        Sherby
        last edited by

        @doktornotor:

        So, for anyone here who's not given up yet and is having issues with https://redmine.pfsense.org/issues/4420 - there's v2.4.5 out. If someone's wiling to undo the manual hacks (stuff like cyrus-sasl2/libspf2 installed via pkg, symlinks etc.) and report back, it'd be appreciated.

        Hi,
        I did uninstall the postfix package and undo any manual fixes and patches.
        Then I did firmware upgrade from 2.2.4 to 2.2.5 and postfix package reinstall.
        This time, things look better but I still had to do some tweak to the postfix.inc file to make it work.

        1. had to do the following procedure, except for the 2 first line "fetch…" because I believe those file are now obsolete and will break things, since the package has been updated.

        @marcelloc:

        Reposting update guide for pfsense 2.2.x only:

        Install package via gui
        execute code below via console/ssh

        fetch -o /usr/local/www/postfix.php http://e-sac.siteseguro.ws/px22/postfix.txt
        fetch -o /usr/local/www/widgets/widgets/postfix.widget.php http://e-sac.siteseguro.ws/px22/postfix.widget.txt
        pbi_delete postfix-2.11.3_2-amd64
        rm -f /usr/pbi/bin/libexec/postfix
        rm -f /usr/local/etc/postfix
        rm -f /var/spool/postfix
        rm -f /var/mail/postfix
        rm -f /var/db/postfix
        pkg install postfix
        
        

        fix postfix.inc file with this patch via system patcher package

        add this patch via package system patcher

        **description:**postfix_inc
        patch:

        --- postfix.orig.inc 2015-08-18 08:15:00.000000000 +0000
        +++ postfix.inc  2015-08-18 08:18:10.000000000 +0000
        @@ -36,11 +36,11 @@
         require_once("globals.inc");
        
         $pfs_version = substr(trim(file_get_contents("/etc/version")),0,3);
        -if ($pfs_version == "2.1" || $pfs_version == "2.2") {
        -       define('POSTFIX_LOCALBASE', '/usr/pbi/postfix-' . php_uname("m"));
        -} else {
        +//if ($pfs_version == "2.1" || $pfs_version == "2.2") {
        +//     define('POSTFIX_LOCALBASE', '/usr/pbi/postfix-' . php_uname("m"));
        +//} else {
                define('POSTFIX_LOCALBASE','/usr/local');
        -}
        +//}
        
         $uname=posix_uname();
         if ($uname['machine']=='amd64')
        
        

        directory:/usr/local/pkg/

        1. had to manually patch the file /usr/local/www/postfix_view_config.php, to fix the path for config files to allow displaying  the config file correctly under the "view config" tab.

        Guys, you did a great job to make that package work on pfsense 2.2.x !

        1 Reply Last reply Reply Quote 0
        • M
          MadCatZA
          last edited by

          Any ETA on a "Install and Go" fix without needing to manually edit things?

          1 Reply Last reply Reply Quote 0
          • D
            doktornotor Banned
            last edited by

            @MadCatZA:

            Any ETA on a "Install and Go" fix without needing to manually edit things?

            ETA = never. The package is gone from pfSense 2.3.

            1 Reply Last reply Reply Quote 0
            • M
              MadCatZA
              last edited by

              @doktornotor:

              @MadCatZA:

              Any ETA on a "Install and Go" fix without needing to manually edit things?

              ETA = never. The package is gone from pfSense 2.3.

              Mmm… Then I must ask what mail forwarder is pfsense going to replace it with? Surely many people make use of pfsense for dual web and mail filtering and other general firewall purpouses. Scrapping postfix without a replacement would force people to look at other next generation firewalls.

              1 Reply Last reply Reply Quote 0
              • D
                doktornotor Banned
                last edited by

                @MadCatZA:

                Mmm… Then I must ask what mail forwarder is pfsense going to replace it with?

                I don't believe any replacement is planned for this. https://redmine.pfsense.org/issues/5374

                1 Reply Last reply Reply Quote 0
                • M
                  MadCatZA
                  last edited by

                  @doktornotor:

                  @MadCatZA:

                  Mmm… Then I must ask what mail forwarder is pfsense going to replace it with?

                  I don't believe any replacement is planned for this. https://redmine.pfsense.org/issues/5374

                  Does that also mean all the other mail apps like mailscanner, spamassasin, clamav ect will be falling away? Last I checked the Postfix was a MTA that sent all emails to 127.0.0.1 on the pfsense box were they were then scanned and filtered accordingly, PostFix would then send them on there way when they were done. Unless I am understanding wrong, how would I filter my mail now without PostFix?

                  1 Reply Last reply Reply Quote 0
                  • D
                    doktornotor Banned
                    last edited by

                    @MadCatZA:

                    Unless I am understanding wrong, how would I filter my mail now without PostFix?

                    On your mailserver perhaps? I don't get the idea of running postfix, spam filters and co. on a firewall… Regardless, take this with pfSense developers, I'm not one.

                    1 Reply Last reply Reply Quote 0
                    • M
                      MadCatZA
                      last edited by

                      @doktornotor:

                      @MadCatZA:

                      Unless I am understanding wrong, how would I filter my mail now without PostFix?

                      On your mailserver perhaps? I don't get the idea of running postfix, spam filters and co. on a firewall… Regardless, take this with pfSense developers, I'm not one.

                      Meant how would I filter my mail without PostFix "On pfSense", but I appreciate your honest replies. What a pity I liked pfSense. Cheers.

                      1 Reply Last reply Reply Quote 0
                      • marcellocM
                        marcelloc
                        last edited by

                        I'm migrating the package for 2.3.

                        If you use pfsense as an UTM, packages postfix, varnish, squid, mailscanner give it layer 7 ability on these protocols.

                        For me it's really usefull.

                        Treinamentos de Elite: http://sys-squad.com

                        Help a community developer! ;D

                        1 Reply Last reply Reply Quote 0
                        • M
                          MadCatZA
                          last edited by

                          @marcelloc:

                          I'm migrating the package for 2.3.

                          If you use pfsense as an UTM, packages postfix, varnish, squid, mailscanner give it layer 7 ability on these protocols.

                          For me it's really usefull.

                          Now that is some good news for a change. PostFix "IS" one of the best used packages on pfSense. To scrap it would be going backwards. Happy days :)

                          1 Reply Last reply Reply Quote 0
                          • marcellocM
                            marcelloc
                            last edited by

                            @MadCatZA:

                            PostFix "IS" one of the best used packages on pfSense.

                            Pull request sent

                            Treinamentos de Elite: http://sys-squad.com

                            Help a community developer! ;D

                            1 Reply Last reply Reply Quote 0
                            • BismarckB
                              Bismarck
                              last edited by

                              Sadly SPF is broken now:

                              unused parameter: spf_mark_only=yes

                              This was a very useful option to fight sender address forgery.

                              Any idea how to fix?

                              //Edit

                              This could be a option? py27-postfix-policyd-spf-python works great and easy to setup! :)

                              
                              $ pkg install py27-postfix-policyd-spf-python
                              Updating FreeBSD repository catalogue...
                              FreeBSD repository is up-to-date.
                              All repositories are up-to-date.
                              The following 6 package(s) will be affected (of 0 checked):
                              
                              New packages to be INSTALLED:
                                      py27-postfix-policyd-spf-python: 1.3.2
                                      py27-authres: 0.800
                                      py27-spf: 2.0.12_1
                                      py27-dns: 2.3.6_1
                                      python2: 2_3
                                      py27-ipaddr: 2.1.10_1
                              
                              The process will require 856 KiB more space.
                              152 KiB to be downloaded.
                              
                              Proceed with this action? [y/N]: y
                              Fetching py27-postfix-policyd-spf-python-1.3.2.txz: 100%   38 KiB  38.5kB/s    00:01
                              Fetching py27-authres-0.800.txz: 100%   26 KiB  26.7kB/s    00:01
                              Fetching py27-spf-2.0.12_1.txz: 100%   34 KiB  35.0kB/s    00:01
                              Fetching py27-dns-2.3.6_1.txz: 100%   31 KiB  32.0kB/s    00:01
                              Fetching python2-2_3.txz: 100%    1 KiB   1.1kB/s    00:01
                              Fetching py27-ipaddr-2.1.10_1.txz: 100%   22 KiB  22.1kB/s    00:01
                              Checking integrity... done (0 conflicting)
                              [1/6] Installing python2-2_3...
                              [1/6] Extracting python2-2_3: 100%
                              [2/6] Installing py27-dns-2.3.6_1...
                              [2/6] Extracting py27-dns-2.3.6_1: 100%
                              [3/6] Installing py27-authres-0.800...
                              [3/6] Extracting py27-authres-0.800: 100%
                              [4/6] Installing py27-spf-2.0.12_1...
                              [4/6] Extracting py27-spf-2.0.12_1: 100%
                              [5/6] Installing py27-ipaddr-2.1.10_1...
                              [5/6] Extracting py27-ipaddr-2.1.10_1: 100%
                              [6/6] Installing py27-postfix-policyd-spf-python-1.3.2...
                              [6/6] Extracting py27-postfix-policyd-spf-python-1.3.2: 100%
                              Message from py27-postfix-policyd-spf-python-1.3.2:
                              #
                              # To configure Postfix
                              #
                              
                              This package must be integrated with Postfix to be effective:
                              
                               1\. Add to your postfix master.cf:
                              
                                      policyd-spf  unix  -       n       n       -       0       spawn
                                          user=nobody argv=/usr/local/bin/policyd-spf
                              
                               2\. Configure the Postfix policy service in your main.cf so that the
                                  "smtpd_recipient_restrictions" includes a call to the policyd-spf policy
                                  filter.  If you already have a "smtpd_recipient_restrictions" line, you can
                                  add the "check_policy_service" command anywhere *after* the line which
                                  reads "reject_unauth_destination" (otherwise you're system can become an
                                  open relay).
                              
                                      smtpd_recipient_restrictions =
                                          ...
                                          reject_unauth_destination
                                          check_policy_service unix:private/policyd-spf
                                          ...
                              
                                      policyd-spf_time_limit = 3600
                              
                                3\. Please consult the postfix documentation for more information on these and
                                   other settings you may wish to have in the "smtpd_recipient_restrictions"
                                   configuration.
                              
                                4\. Reload postfix.
                              

                              spf.jpg
                              spf.jpg_thumb

                              1 Reply Last reply Reply Quote 0
                              • H
                                hcoin
                                last edited by

                                For me, postfix+friends on pfsense a major administrative convenience. And, it is in keeping with the spirit of what is is a 'firewall' does (if only in an expanded sense). Most of the spam traffic won't even succeed in connecting, the ones that do cause internet 'internet spam service check' requests to leave from the firewall without having to take up bandwidth on the lan, and most of the evil attachments never make it past the firewall either. It also (I hope still will) allow one 'clamav' install to manage scanning web traffic for the squid suite and also the mailscanner/email.

                                Also, having the 'postfix and associated packages" stack in PF allows me to leverage pf's certificate management, destination email domain routing, failover, load balancing for email. That internal domain routing bit is a security plus as traffic for domain X never travels lan segments used by those on domains A, B and C, an obvious security plus. Also it allows the internal smtp world to be very fast and lean as it needs minimal security and no need for the add-on 'nasty-checking' packages.

                                Remember one of the main spam defences is having the mail exchanger's reverse dns match the common name in the ssl certificate. Anytime information can be kept in one place and closer to where it's used is an admin win.

                                Last, the postfix config for the lan side can use the lmtp protocol which is a major overhead saver (no per message setups/teardowns).

                                It calls for a multiprocessor setup, lots of ram and lots of disk. I know that is not exactly what comes to mind using the word 'embedded', but the above is my $0.02 on why it's worth it.

                                If it were to be removed, I'd have to create not just port forward to a new subnet but a vlan just to isolate incoming email traffic, then – well, it would result in an economic bonanza for the people who sell those coffee thingys.

                                1 Reply Last reply Reply Quote 0
                                • B
                                  biggsy
                                  last edited by

                                  @Bismarck:

                                  Sadly SPF is broken now:

                                  Bismarck, have you been able to install from Available Packages?  I missed a few days of 2.3 updates but haven't seen the postfix package listed.

                                  1 Reply Last reply Reply Quote 0
                                  • BismarckB
                                    Bismarck
                                    last edited by

                                    Hi biggsy,

                                    the packages should still be there:

                                    http://files.pfsense.org/packages/10/All/postfix-2.11.3_2-amd64.pbi

                                    HowTo: Install packages

                                    regards

                                    1 Reply Last reply Reply Quote 0
                                    • marcellocM
                                      marcelloc
                                      last edited by

                                      The pull request still needs to be aproved first.

                                      Treinamentos de Elite: http://sys-squad.com

                                      Help a community developer! ;D

                                      1 Reply Last reply Reply Quote 0
                                      • BismarckB
                                        Bismarck
                                        last edited by

                                        Hello marcelloc,

                                        since 2.2.x Postfix doesn't write spam logs to the sqlite database, thus you can't search for spam and the widget doesn't display any spam records.

                                        This makes it really hard to track false positives.  :'(

                                        Please help!

                                        //edit

                                        when I execute it via putty after I send a spam test, it does write the spam record to the database file!?

                                        [root@pfsense~]$ /usr/local/bin/php -q /usr/local/www/postfix.php 01min
                                        
                                        /usr/bin/grep '^Jan 15 09:25.*\(MailScanner\|postfix.cleanup\|postfix.smtp\|postfix.error\|postfix.qmgr\)' /var/log/maillog
                                        Found logs to 2016-01-15.db
                                        
                                        #######################################
                                        SPAM:SpamAssassin (nicht zwischen gespeichert, Wertung=1004.701, benoetigt 3, FSL_HELO_NON_FQDN_1 0.00, GTUBE 1000.00, HTML_MESSAGE 0.00, PYZOR_CHECK 1.98, RDNS_NONE 0.00, TVD_RCVD_SINGLE 1.21, ZONK_PHISH_BODY 1.50)5E1EA1C2B99zonk
                                        #######################################
                                        
                                        #######################################
                                        SPAM:SpamAssassin (nicht zwischen gespeichert, Wertung=1004.701, benoetigt 3, FSL_HELO_NON_FQDN_1 0.00, GTUBE 1000.00, HTML_MESSAGE 0.00, PYZOR_CHECK 1.98, RDNS_NONE 0.00, TVD_RCVD_SINGLE 1.21, ZONK_PHISH_BODY 1.50)4E48D1C2BFBzonk
                                        #######################################
                                        writing to database...writing to database... writing to local db 2016-01-15...ok
                                        

                                        maybe a timeing problem?

                                        1 Reply Last reply Reply Quote 0
                                        • B
                                          biggsy
                                          last edited by

                                          @marcelloc:

                                          The pull request still needs to be aproved first.

                                          Thank you for working on this, Marcello.  Is there any news?

                                          1 Reply Last reply Reply Quote 0
                                          • BismarckB
                                            Bismarck
                                            last edited by

                                            FYI

                                            I did a fresh install of pfSense 2.2.6 last week and the Postfix package did work out of the box, expect the search mail & widget sqlite bug, wich can be fixed by fetching the postfix.php/postfix.widget.php from:

                                            fetch -o /usr/local/www/postfix.php http://e-sac.siteseguro.ws/px22/postfix.txt
                                            fetch -o /usr/local/www/widgets/widgets/postfix.widget.php http://e-sac.siteseguro.ws/px22/postfix.widget.txt
                                            

                                            So NO need to delete Postfix and install it via pkgng!

                                            Regards  ;)

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