SPFQUERY(1)						User Contributed Perl Documentation					       SPFQUERY(1)

NAME

       spfquery - (Mail::SPF) - Checks if a given set of e-mail parameters matches a domain's SPF policy

VERSION

       2.501

SYNOPSIS

       Preferred usage:
	   spfquery [--versions|-v 1|2|1,2] [--scope|-s helo|mfrom|pra] --identity|--id identity --ip-address|--ip ip-address
	   [--helo-identity|--helo-id helo-identity] [OPTIONS]

	   spfquery [--versions|-v 1|2|1,2] [--scope|-s helo|mfrom|pra] --file|-f filename|- [OPTIONS]

       Legacy usage:
	   spfquery --helo helo-identity --ip-address|--ip ip-address [OPTIONS]

	   spfquery --mfrom mfrom-identity --ip-address|--ip ip-address [--helo helo-identity] [OPTIONS]

	   spfquery --pra pra-identity --ip-address|--ip ip-address [OPTIONS]

       Other usage:
	   spfquery --version|-V

	   spfquery --help

DESCRIPTION

       spfquery checks if a given set of e-mail parameters (e.g., the SMTP sender's IP address) matches the responsible domain's Sender Policy
       Framework (SPF) policy.	For more information on SPF see <http://www.openspf.org>.

   Preferred Usage
       The following usage forms are preferred over the legacy forms used by older spfquery versions:

       The --identity form checks if the given ip-address is an authorized SMTP sender for the given "helo" hostname, "mfrom" envelope sender
       e-mail address, or "pra" (so-called purported resonsible address) e-mail address, depending on the value of the --scope option (which
       defaults to mfrom if omitted).

       The --file form reads "ip-address identity [helo-identity]" tuples from the file with the specified filename, or from standard input if
       filename is -, and checks them against the specified scope (mfrom by default).

       Both forms support an optional --versions option, which specifies a comma-separated list of the SPF version numbers of SPF records that may
       be used.  1 means that "v=spf1" records should be used.	2 means that "spf2.0" records should be used.  Defaults to 1,2, i.e., uses any SPF
       records that are available.  Records of a higher version are preferred.

   Legacy Usage
       spfquery versions before 2.500 featured the following usage forms, which are discouraged but still supported for backwards compatibility:

       The --helo form checks if the given ip-address is an authorized SMTP sender for the "HELO" hostname given as the identity (so-called "HELO"
       check).

       The --mfrom form checks if the given ip-address is an authorized SMTP sender for the envelope sender email-address (or domain) given as the
       identity (so-called "MAIL FROM" check).	If a domain is given instead of an e-mail address, "postmaster" will be substituted for the
       localpart.

       The --pra form checks if the given ip-address is an authorized SMTP sender for the PRA (Purported Responsible Address) e-mail address given
       as the identity.

   Other Usage
       The --version form prints version information of spfquery.  The --help form prints usage information for spfquery.

OPTIONS

   Standard Options
       The preferred and legacy forms optionally take any of the following OPTIONS:

       --default-explanation string
       --def-exp string
	   Use the specified string as the default explanation if the authority domain does not specify an explanation string of its own.

       --hostname hostname
	   Use hostname as the host name of the local system instead of auto-detecting it.

       --keep-comments
       --no-keep-comments
	   Do (not) print any comments found when reading from a file or from standard input.

       --sanitize (currently ignored)
       --no-sanitize (currently ignored)
	   Do (not) sanitize the output by condensing consecutive white-space into a single space and replacing non-printable characters with
	   question marks.  Enabled by default.

       --debug (currently ignored)
	   Print out debug information.

   Black Magic Options
       Several options that were supported by earlier versions of spfquery are considered black magic (i.e. potentially dangerous for the innocent
       user) and are thus disabled by default.	If the Mail::SPF::BlackMagic Perl module is installed, they may be enabled by specifying
       --enable-black-magic.

       --max-dns-interactive-terms n
	   Evaluate a maximum of n DNS-interactive mechanisms and modifiers per SPF check.  Defaults to 10.  Do not override the default unless
	   you know what you are doing!

       --max-name-lookups-per-term n
	   Perform a maximum of n DNS name look-ups per mechanism or modifier.	Defaults to 10.  Do not override the default unless you know what
	   you are doing!

       --authorize-mxes-for email-address|domain,...
	   Consider all the MXes of the comma-separated list of email-addresses and domains as inherently authorized.

       --tfwl
	   Perform "trusted-forwarder.org" accreditation checking.

       --guess spf-terms
	   Use spf-terms as a default record if no SPF record is found.

       --local spf-terms
	   Process spf-terms as local policy before resorting to a default result (the implicit or explicit "all" mechanism at the end of the
	   domain's SPF record).  For example, this could be used for white-listing one's secondary MXes: "mx:mydomain.example.org".

       --override domain=spf-record
       --fallback domain=spf-record
	   Set overrides and fallbacks.  Each option can be specified multiple times.  For example:

	       --override example.org='v=spf1 -all'
	       --override '*.example.net'='v=spf1 a mx -all'
	       --fallback example.com='v=spf1 -all'

RESULT CODES

       pass	   The specified IP address is an authorized SMTP sender for the identity.

       fail	   The specified IP address is not an authorized SMTP sender for the identity.

       softfail    The specified IP address is not an authorized SMTP sender for the identity, however the authority domain is still testing out
		   its SPF policy.

       neutral	   The identity's authority domain makes no assertion about the status of the IP address.

       permerror   A permanent error occurred while evaluating the authority domain's policy (e.g., a syntax error in the SPF record).	Manual
		   intervention is required from the authority domain.

       temperror   A temporary error occurred while evaluating the authority domain's policy (e.g., a DNS error).  Try again later.

       none	   There is no applicable SPF policy for the identity domain.

EXIT CODES

	 Result    | Exit code
	-----------+-----------
	 pass	   |	 0
	 fail	   |	 1
	 softfail  |	 2
	 neutral   |	 3
	 permerror |	 4
	 temperror |	 5
	 none	   |	 6

EXAMPLES

	   spfquery --scope mfrom --id user@example.com --ip 1.2.3.4
	   spfquery --file test_data
	   echo "127.0.0.1 user@example.com helohost.example.com" | spfquery -f -

COMPATIBILITY

       spfquery has undergone the following interface changes compared to earlier versions:

       2.500
	   o   A new preferred usage style for performing individual SPF checks has been introduced.  The new style accepts a unified --identity
	       option and an optional --scope option that specifies the type (scope) of the identity.  In contrast, the legacy usage style
	       requires a separate usage form for every supported scope.  See "Preferred usage" and "Legacy usage" for details.

	   o   The former "unknown" and "error" result codes have been renamed to "permerror" and "temperror", respectively, in order to comply
	       with RFC 4408 terminology.

	   o   SPF checks with an empty identity are no longer supported.  In the case of an empty "MAIL FROM" SMTP transaction parameter, perform
	       a check with the "helo" scope directly.

	   o   The --debug and --(no-)sanitize options are currently ignored by this version of spfquery.  They will again be supported in the
	       future.

	   o   Several features that were supported by earlier versions of spfquery are considered black magic and thus are now disabled by
	       default.  See "Black Magic Options".

	   o   Several option names have been deprecated.  This is a list of them and their preferred synonyms:

		 Deprecated options  | Preferred options
		---------------------+-----------------------------
		 --sender, -s	     | --mfrom
		 --ipv4, -i	     | --ip-address, --ip
		 --name 	     | --hostname
		 --max-lookup-count, | --max-dns-interactive-terms
		   --max-lookup      |
		 --rcpt-to, -r	     | --authorize-mxes-for
		 --trusted	     | --tfwl

SEE ALSO

       Mail::SPF, spfd(8)

       <http://tools.ietf.org/html/rfc4408>

AUTHORS

       This version of spfquery is a complete rewrite by Julian Mehnle <julian@mehnle.net>, based on an earlier version written by Meng Weng Wong
       <mengwong+spf@pobox.com> and Wayne Schlitt <wayne@schlitt.net>.

perl v5.18.2							    2018-09-13							       SPFQUERY(1)