postfix-policyd-spf-perl-2.000/0000755000175000017500000000000010562447250016625 5ustar kittermakittermapostfix-policyd-spf-perl-2.000/postfix-policyd-spf-perl0000755000175000017500000001772610562447056023457 0ustar kittermakitterma#!/usr/bin/perl # postfix-policyd-spf-perl # http://www.openspf.org/Software # version 2.000 # #(C) 2007 Scott Kitterman #(C) 2003-2004 Meng Weng Wong # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. use version; our $VERSION = qv('2.000'); use strict; use IO::Handle; use Sys::Syslog qw(:DEFAULT setlogsock); use Mail::SPF; # ---------------------------------------------------------- # configuration # ---------------------------------------------------------- my $spf_server = Mail::SPF::Server->new(); # Leaving this to make it easier to add more handlers later: my @HANDLERS = ( { name => 'sender_policy_framework', code => \&sender_policy_framework } ); my $VERBOSE = 0; my $DEFAULT_RESPONSE = 'DUNNO'; # # Syslogging options for verbose mode and for fatal errors. # NOTE: comment out the $syslog_socktype line if syslogging does not # work on your system. # my $syslog_socktype = 'unix'; # inet, unix, stream, console my $syslog_facility = 'mail'; my $syslog_options = 'pid'; my $syslog_ident = 'postfix/policy-spf'; # ---------------------------------------------------------- # initialization # ---------------------------------------------------------- # # Log an error and abort. # sub fatal_exit { syslog(err => "fatal_exit: @_"); syslog(warning => "fatal_exit: @_"); syslog(info => "fatal_exit: @_"); die("fatal: @_"); } # # Unbuffer standard output. # STDOUT->autoflush(1); # # This process runs as a daemon, so it can't log to a terminal. Use # syslog so that people can actually see our messages. # setlogsock($syslog_socktype); openlog($syslog_ident, $syslog_options, $syslog_facility); # ---------------------------------------------------------- # main # ---------------------------------------------------------- # # Receive a bunch of attributes, evaluate the policy, send the result. # my %attr; while () { chomp; if (/=/) { my ($key, $value) =split (/=/, $_, 2); $attr{$key} = $value; next; } elsif (length) { syslog(warning => sprintf("warning: ignoring garbage: %.100s", $_)); next; } if ($VERBOSE) { for (sort keys %attr) { syslog(debug => "Attribute: %s=%s", $_, $attr{$_}); } } my $action = $DEFAULT_RESPONSE; my %responses; # Skip SPF check for local connections if ($attr{client_address}=~ /^127\./) { $action = "PREPEND X-SPF skipped - localhost is always allowed." } else { foreach my $handler (@HANDLERS) { my $handler_name = $handler->{name}; my $handler_code = $handler->{code}; my $response = $handler_code->(attr => \%attr); if ($VERBOSE) { syslog(debug => "handler %s: %s", $handler_name, $response); } # Picks whatever response is not dunno if ($response and $response !~ /^dunno/i) { syslog(info => "handler %s: is decisive.", $handler_name); $action = $response; last; } } } syslog(info => "%s: Policy action=%s", $attr{queue_id}, $action); STDOUT->print("action=$action\n\n"); %attr = (); } # ---------------------------------------------------------- # plugin: SPF # ---------------------------------------------------------- sub sender_policy_framework { my %options = @_; my $attr = $options{attr}; # Always do HELO check first. If no HELO policy it's only one lookup. # Avoids the need to do any Mail From processing for null sender. my $helo_request = eval { Mail::SPF::Request->new( scope => 'helo', identity => $attr->{helo_name}, ip_address => $attr->{client_address} ); }; # If initializing helo_request throws an error, don't use it. if ($@) { my $errmsg = $@; $errmsg = $errmsg->text if UNIVERSAL::isa($@, 'Mail::SPF::Exception'); syslog( info => "%s:HELO check failed - Mail::SPF->new(%s, %s, %s) failed: %s", $attr->{queue_id}, $attr->{client_address}, $attr->{sender}, $attr->{helo_name}, $errmsg ); return "DUNNO"; } else { my $helo_result = $spf_server->process($helo_request); my $helo_result_code = $helo_result->code; # 'pass', 'fail', etc. my $helo_local_exp = $helo_result->local_explanation; my $helo_authority_exp = $helo_result->authority_explanation if $helo_result->is_code('fail'); my $helo_spf_header = $helo_result->received_spf_header; if ($VERBOSE) { syslog( info => "%s: SPF %s: HELO/EHLO: %s, IP Address: %s, Recipient: %s", $attr->{queue_id}, $helo_result, $attr->{helo_name}, $attr->{client_address}, $attr->{recipient} ); }; # Reject on HELO fail. Defer on HELO temperror if message would otherwise # be accepted. Use the HELO result and return for null sender. if ($helo_result->is_code('fail')) { return "550 $helo_authority_exp"; } elsif ($helo_result->is_code('temperror')) { return "DEFER_IF_PERMIT SPF-Result=$helo_local_exp"; } elsif ($attr->{sender} eq '') { return "PREPEND $helo_spf_header"; } } # Do mail from is HELO doesn't give a definitive result. my $mfrom_request = eval { Mail::SPF::Request->new( scope => 'mfrom', identity => $attr->{sender}, ip_address => $attr->{client_address}, helo_identity => $attr->{helo_name} # for %{h} macro expansion ); }; if ($@) { my $errmsg = $@; $errmsg = $errmsg->text if UNIVERSAL::isa($@, 'Mail::SPF::Exception'); syslog( info => "%s: Mail From (sender) check failed - Mail::SPF->new(%s, %s, %s) failed: %s", $attr->{queue_id}, $attr->{client_address}, $attr->{sender}, $attr->{helo_name}, $errmsg ); return "DUNNO"; } else { my $mfrom_result = $spf_server->process($mfrom_request); my $mfrom_result_code = $mfrom_result->code; # 'pass', 'fail', etc. my $mfrom_local_exp = $mfrom_result->local_explanation; my $mfrom_authority_exp = $mfrom_result->authority_explanation if $mfrom_result->is_code('fail'); my $mfrom_spf_header = $mfrom_result->received_spf_header; if ($VERBOSE) { syslog( info => "%s: SPF %s: Envelope-from: %s, IP Address: %s, Recipient: %s", $attr->{queue_id}, $mfrom_result, $attr->{sender}, $attr->{client_address}, $attr->{recipient} ); }; # Same approach as HELO.... if ($mfrom_result->is_code('fail')) { return "550 $mfrom_authority_exp"; } elsif ($mfrom_result->is_code('temperror')) { return "DEFER_IF_PERMIT SPF-Result=$mfrom_local_exp"; } else { return "PREPEND $mfrom_spf_header"; } } } postfix-policyd-spf-perl-2.000/LICENSE0000644000175000017500000004310310562447056017637 0ustar kittermakitterma GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. 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It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. postfix-policyd-spf-perl-2.000/debian/0000755000175000017500000000000010562447327020054 5ustar kittermakittermapostfix-policyd-spf-perl-2.000/debian/rules0000755000175000017500000000154110562447056021134 0ustar kittermakitterma#!/usr/bin/make -f PACKAGE = $(shell dh_listpackages) ifndef PERL PERL = /usr/bin/perl endif TMP = $(CURDIR)/debian/$(PACKAGE) build: # Nothing to do. clean: dh_testdir dh_testroot dh_clean build-stamp install-stamp install: install-stamp install-stamp: dh_testdir dh_testroot dh_clean -k install -D postfix-policyd-spf-perl $(TMP)/usr/sbin/postfix-policyd-spf-perl touch install-stamp # Build architecture-independent files here: binary-indep: build install dh_testdir dh_testroot dh_installdocs dh_installman debian/postfix-policyd-spf-perl.8 dh_installchangelogs CHANGES dh_compress dh_fixperms dh_installdeb dh_perl dh_gencontrol dh_md5sums dh_builddeb # Build architecture-dependent files here: binary-arch: # Nothing to do. binary: binary-indep binary-arch .PHONY: build clean binary-indep binary-arch binary install postfix-policyd-spf-perl-2.000/debian/postfix-policyd-spf-perl.80000644000175000017500000001772510562447056025043 0ustar kittermakitterma\" .\" Standard preamble: .\" ======================================================================== .de Sh \" Subsection heading .br .if t .Sp .ne 5 .PP \fB\\$1\fR .PP .. .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' 'br\} .\" .\" If the F register is turned on, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . nr % 0 . rr F .\} .\" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .hy 0 .if n .na .\" .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). .\" Fear. Run. Save yourself. No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "postfix-policyd-spf-perl 1p" .TH postfix-policyd-spf-perl 8p "2007-01-11" .SH "NAME" postfix-policyd-spf-perl \- pure-Perl Postfix policy daemon for SPF checking .SH "VERSION" .IX Header "VERSION" 2\.000 .SH "USAGE" .IX Header "USAGE" Usage: policyd-spf-perl [-v] .SH "OTHER DOCUMENTATION" .IX Header "OTHER DOCUMENTATION" This documentation assumes you have read Postfix's README_FILES/ SMTPD_POLICY_README. .SH "SYNOPSIS" .IX Header "SYNOPSIS" postfix-policyd-spf-perl is a Postfix SMTPd policy daemon for SPF checking. It is implemented in pure Perl and uses the Mail::SPF CPAN module. Note that Mail::SPF is a complete re-implementation of SPF based on the final SPF RFC, RFC 4408. It shares no code with the older Mail::SPF::Query that was the original SPF development implementation. If you are upgrading from on older version of this policy server you will need to install Mail::SPF. This version of the policy server always checks HELO before Mail From (older versions just checked HELO if Mail From was null). It will reject mail that fails either Mail From or HELO SPF checks. It will defer mail if there is a temporary SPF error and the message would othersise be permitted (DEFER_IF_PERMIT). If the HELO check produces a REJECT/DEFER result, Mail From will not be checked. If the message is not rejected or deferred, the policy server will PREPEND the appropriate SPF Received header. In the case of multi-recipient mail, multiple headers will get appended. If Mail From is anything other than completely empty (i.e. <>) then the Mail From result will be used for SPF Received (e.g. Mail From None even if HELO is Pass). The policy server skips SPF checks for connections from the localhost (127.) and instead prepends and logs 'SPF skipped - localhost is always allowed.' Error conditions within the policy server (that don't result in a crash) or from Mail::SPF will return DUNNO. .SH "DESCRIPTION" .IX Header "DESCRIPTION" Logging is sent to syslogd. Each time a Postfix SMTP server process is started it connects to the policy service socket and Postfix runs one instance of this Perls script. By default, a Postfix SMTP server process terminates after 100 seconds of idle time, or after serving 100 clients. Thus, the cost of starting this Perl script is smoothed over time The default policy_time_limit is 1000 seconds. This may be too short for some SMTP transactions to complete. As recommended in SMTPD_POLICY_README, this should be extended to 3600 seconds. To do so, set "policy_time_limit = 3600" in /etc/postfix/main.cf. .SH "TESTING THE POLICY DAEMON" .IX Header "TESTING THE POLICY DAEMON" Testing the policy daemon To test the policy daemon by hand, execute: % perl /usr/sbin/postfix-policyd-spf-perl Each query is a bunch of attributes. Order does not matter, and the daemon uses only a few of all the attributes shown below: request=smtpd_access_policy protocol_state=RCPT protocol_name=SMTP helo_name=some.domain.tld queue_id=8045F2AB23 sender=foo@bar.tld recipient=bar@foo.tld client_address=1.2.3.4 client_name=another.domain.tld [empty line] The policy daemon will answer in the same style, with an attribute list followed by a empty line: action=550 Please see http://www.openspf.org/Why?id=foo@bar.tld&ip=1.2.3.4& receiver=bar@foo.tld [empty line] To test HELO checking sender should be empty: sender= ... More attributes... [empty line] If you want more detail in the system logs change $VERBOSE to 1. .SH "POSTFIX INTEGRATION" .IX Header "POSTFIX INTEGRATION" 1. Add the following to /etc/postfix/master.cf: policy unix - n n - - spawn user=nobody argv=/usr/bin/perl /usr/sbin/policyd-spf-perl 2. Configure the Postfix policy service in /etc/postfix/main.cf: smtpd_recipient_restrictions = ... reject_unauth_destination check_policy_service unix:private/policy ... policy_time_limit = 3600 NOTE: Specify check_policy_service AFTER reject_unauth_destination or else your system can become an open relay. 3. Restart Postfix. .SH "SEE ALSO" .IX Header "SEE ALSO" libmail-spf-perl, .SH "AUTHORS" .IX Header "AUTHORS" This version of \fBpolicyd-spf-perl\fR was written by Meng Weng Wong and updated for libmail-spf-perl by Scott Kitterman . .PP This man-page was written by Scott Kitterman . postfix-policyd-spf-perl-2.000/debian/docs0000644000175000017500000000003510562447056020724 0ustar kittermakittermaREADME debian/INSTALL.Debian postfix-policyd-spf-perl-2.000/debian/compat0000644000175000017500000000000210562447056021251 0ustar kittermakitterma5 postfix-policyd-spf-perl-2.000/debian/copyright0000644000175000017500000000664210562447056022016 0ustar kittermakittermaThis package was debianized by Scott Kitterman on Thu, 11 Jan 2007 04:29:13 -0500. It was downloaded from . Upstream authors Meng Weng Wong and Scott Kitterman Copyright: (C) 2007 Scott Kitterman (C) 2003-2004 Meng Weng Wong This is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2 or later). GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. On Debian systems, the complete text of the GPL v2 can be found here: /usr/share/common-licenses/GPL-2 postfix-policyd-spf-perl-2.000/debian/control0000644000175000017500000000127110562447056021457 0ustar kittermakittermaSource: postfix-policyd-spf-perl Section: mail Priority: extra Maintainer: Scott Kitterman Build-Depends: debhelper (>= 5) Standards-Version: 3.7.2 Package: postfix-policyd-spf-perl Architecture: all Depends: libversion-perl, libmail-spf-perl, ${perl:Depends} Recommends: postfix Description: pure-Perl Postfix policy daemon for RFC 4408 compliant SPF checking postfix-policyd-spf-perl is a Postfix SMTPd policy server for SPF checking. It is implemented in pure Perl and uses the Mail::SPF module. The SPF web site is http://www.openspf.org/. The Postfix configuration must be changed to check SPF. See README.Debian or man 8 postfix-policyd-spf-perl for details. postfix-policyd-spf-perl-2.000/debian/README.Debian0000644000175000017500000000112310562447056022111 0ustar kittermakittermaInstalling ---------- 1. Add the following to /etc/postfix/master.cf: policy unix - n n - - spawn user=nobody argv=/usr/bin/perl /usr/sbin/postfix-policyd-spf-perl 2. Configure the Postfix policy service in /etc/postfix/main.cf: smtpd_recipient_restrictions = ... reject_unauth_destination check_policy_service unix:private/policy ... NOTE: Specify check_policy_service AFTER reject_unauth_destination or else your system can become an open relay. 3. Restart Postfix. postfix-policyd-spf-perl-2.000/debian/changelog0000644000175000017500000000135610562447317021732 0ustar kittermakittermapostfix-policyd-spf-perl (2.000-0ubuntu1) feisty; urgency=low * New upstream release for RFC compliant SPF checking. * Updated control to use libmail-spf-perl instead of the unmaintained libmail-spf-query-perl and changed maintainer to Scott Kitterman (was MOTU). Updated package description. * Updated man pages for new library and upstream documentation updates. -- Scott Kitterman Tue, 06 Feb 2007 17:12:00 -0500 postfix-policyd-spf-perl (1.08.1-0ubuntu1) feisty; urgency=low * Initial debianization of the package. * Removed upstream provided /debian directory * Modified documentation for Debian specific file locations -- Scott Kitterman Thu, 11 Jan 2007 04:59:08 -0500 postfix-policyd-spf-perl-2.000/README0000644000175000017500000000723310562447056017516 0ustar kittermakittermapostfix-policyd-spf-perl 2.000 A Postfix SMTPd policy server for SPF checking (C) 2007 Scott Kitterman 2003-2004 Meng Weng Wong Thanks for contributions by various members of the SPF project ============================================================================== postfix-policyd-spf-perl is a Postfix SMTPd policy daemon for SPF checking. It is implemented in pure Perl and uses the Mail::SPF CPAN module. Note that Mail::SPF is a complete re-implementation of SPF based on the final SPF RFC, RFC 4408. It shares no code with the older Mail::SPF::Query that was the original SPF development implementation. If you are upgrading from on older version of this policy server you will need to install Mail::SPF. This version of the policy server always checks HELO before Mail From (older versions just checked HELO if Mail From was null). It will reject mail that fails either Mail From or HELO SPF checks. It will defer mail if there is a temporary SPF error and the message would othersise be permitted (DEFER_IF_PERMIT). If the HELO check produces a REJECT/DEFER result, Mail From will not be checked. If the message is not rejected or deferred, the policy server will PREPEND the appropriate SPF Received header. In the case of multi-recipient mail, multiple headers will get appended. If Mail From is anything other than completely empty (i.e. <>) then the Mail From result will be used for SPF Received (e.g. Mail From None even if HELO is Pass). The policy server skips SPF checks for connections from the localhost (127.) and instead prepends and logs 'SPF skipped - localhost is always allowed.' Error conditions within the policy server (that don't result in a crash) or from Mail::SPF will return DUNNO. See INSTALL for installation instructions. Usage: policyd-spf-perl [-v] This documentation assumes you have read Postfix's README_FILES/ SMTPD_POLICY_README. Logging is sent to syslogd. Each time a Postfix SMTP server process is started it connects to the policy service socket, and Postfix runs one instance of this Perl script. By default, a Postfix SMTP server process terminates after 100 seconds of idle time, or after serving 100 clients. Thus, the cost of starting this Perl script is smoothed out over time. The default policy_time_limit is 1000 seconds. This may be too short for some SMTP transactions to complete. As recommended in SMTPD_POLICY_README, this should be extended to 3600 seconds. To do so, set "policy_time_limit = 3600" in /etc/postfix/main.cf. Testing the policy daemon ------------------------- To test the policy daemon by hand, execute: % perl /usr/lib/postfix/policyd-spf-perl Each query is a bunch of attributes. Order does not matter, and the daemon uses only a few of all the attributes shown below: request=smtpd_access_policy protocol_state=RCPT protocol_name=SMTP helo_name=some.domain.tld queue_id=8045F2AB23 sender=foo@bar.tld recipient=bar@foo.tld client_address=1.2.3.4 client_name=another.domain.tld [empty line] The policy daemon will answer in the same style, with an attribute list followed by a empty line: action=550 Please see http://www.openspf.org/Why?id=foo@bar.tld&ip=1.2.3.4& receiver=bar@foo.tld [empty line] To test HELO checking sender should be empty: sender= ... More attributes... [empty line] If you want more detail in the system logs change $VERBOSE to 1. License ------- postfix-policyd-spf-perl is free software. You may use, modify, and distribute it under the GNU GPL (version 2 or later); see the LICENSE file. postfix-policyd-spf-perl-2.000/CHANGES0000644000175000017500000000301510562447145017622 0ustar kittermakitterma# Legend: # --- = A new release # + = Added a feature (in a backwards compatible way) # ! = Changed something significant, or removed a feature # * = Fixed a bug, or made a minor improvement --- 2.000 (2007-02-07 17:07) * Change reject reply to 550 for RFC 2821 compliance. * Skip SPF checks for local (127.) connections * Clarified wording for some verbose logging. * Added more information about HELO checking to README. --- 1.990 (2007-02-03 16:00) postfix-policyd-spf-perl: ! Changed from Mail::SPF::Query to Mail::SPF for RFC 4408 compliance ! Removed Testing handler (usage was undocumented). ! Removed debian/ dir from release tarball (still provided via SVN). * Simplified logging. Policy server is less chatty. Logs are clearer. --- 1.08.1 (2007-01-10 21:00) postfix-policyd-spf-perl: * Minor and purely cosmetic code clean-up. Miscellaneous: * Updated README file with new website URL and copyright. * Added LICENSE file as an explicit copy of the GPLv2. Debian: * New maintainer: Scott Kitterman * Priority: extra (was: optional) * Removed Build-Depends-Indep: perl, as there really is no need for it. * Depends: libversion-perl * Updated debian/copyright. --- 1.08 (2006-06-17 20:00) * Added Debian package control files. * Moved documentation from executable into separate README and INSTALL files. Improved documentation. * Minor and purely cosmetic code clean-up. # $Id: CHANGES 61 2007-02-07 22:10:45Z Scott Kitterman $ # vim:tw=79 sts=2 sw=2 postfix-policyd-spf-perl-2.000/INSTALL0000644000175000017500000000152510562447057017666 0ustar kittermakittermaSystem Requirements ------------------- The following Perl version and packages are required for running postfix-policyd-spf-perl: Perl 5.6 version Mail-SPF (not Mail-SPF-Query) Installing ---------- 1. Copy postfix-policyd-spf-perl to /usr/lib/postfix/policyd-spf-perl 2. Add the following to /etc/postfix/master.cf: policy unix - n n - - spawn user=nobody argv=/usr/bin/perl /usr/lib/postfix/policyd-spf-perl 3. Configure the Postfix policy service in /etc/postfix/main.cf: smtpd_recipient_restrictions = ... reject_unauth_destination check_policy_service unix:private/policy ... NOTE: Specify check_policy_service AFTER reject_unauth_destination or else your system can become an open relay. 4. Restart Postfix.