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-.TH s/qmail: spfquery 8
-.SH NAME
-spfquery \- SPF test program
-.SH SYNOPSIS
-.B spfquery
-.I sender-ip
-.I sender-helo
-.I envelope-from
-.I [local rules]
-.I [-v]
-.SH DESCRIPTION
-.B spfquery
-is a test program to allow evaluation
-of
-.I SPF records
-fetched on demand by means of
-.BR qmail-smtpd .
-
-.SH "ARGUMENTS"
-.B spfquery
-uses the given arguments
-.IR sender-ip ,
-.IR sender-helo ,
-and
-.I envelope-from
-to perform a DNS SPF TXT lookup
-and evaluates the results.
-In addition, \'local-rules\' might
-be included as
-.IR local-rules .
-By means of the (last) option
-.I -v
-a verbose output is provided.
-
-.SH "RESPONSE"
-The result of
-.B spfquery
-shows the SPF return codes of the retrieved
-information after the DNS evaluation.
-Additionally, the mechanisms and
-results are displayed as chain
-of resulting codes. In case the option
-.I -v
-is given, the received DNS SPF TXT records
-for the analysed domain are shown in raw
-format to allow further diagnostics.
-
-.SH "SPF MECHANISMS"
-.B spfquery
-and of course
-.B qmail-smtpd
-support all mechanisms defined in
-.IR RFC\ 7208 ,
-in particular:
-.IR A/AAAA ,
-.IR IPv4 ,
-.IR IPv6 ,
-.IR MX ,
-.IR PTR ,
-.IR Exists .
-Nesting of SPF records - indicated by the commands
-.I include:
-and
-.I redirect=
-- is allowed and the chain is followed.
-Further,
-.I exp(lanation)=
-is supported.
-
-.SH "SPF QUALIFIERS"
-SPF makes uses of command and explanation qualifiers.
-Command and explanation characters are:
-.I +
-pass (default),
-.I -
-fail,
-.I ~
-softfail,
-.I ?
-neutral.
-
-.SH "EXPLANATION CHARACTERS"
-This implementation uses the following
-additional explanation characters:
-.I o
-none,
-.I u
-unknown,
-.I d
-DNS problem (not used).
-
-.SH "MACRO EXPANSION"
-Macros (keyword) expansion is supported conforming to
-.IR RFC\ 7208 .
-
-
-.SH "SPF EVALUATION"
-.B spfquery
-provides a brief summary of results for the evaluation:
-.I S
-the sending IP,
-.I O
-the envelope-from address,
-.I C
-the requested domain for lookup,
-.I H
-the HELO/EHLO of the contacted MTA,
-.I M
-the SPF lookup mechanis as explained,
-.I I
-the included domanin for lookup,
-.I D
-the (re)direct to follow,
-.I P
-a potential problem observed.
-These letters are followed by an equal sign '='
-and detail the information.
-.I R
-is the lookup result obtained, followed by a
-colon ':'.
-
-.SH "DIAGNOSTICS"
-Additional DNS diagnostic routines are available:
-.B dnstxt
-returns the DNS TXT for
-.IR host .
-.B dnsptr
-returns the DNS PTR for
-.IR IP .
-.B dnsmxip
-returns the MTA IPs for
-.IR domain .
-
-.SH "CREDITS"
-The
-.B spfquery
-program and the SPF integration into
-.B s/qmail
-follows mainly the implementation of
-Jana Saout (http://www.saout.de/misc/spf/)
-and is used by permission.
-
-.SH "SEE ALSO"
-qmail-control(5),
-qmail-smtpd(8)
-dnsmxip(8),
-dnstxt(8).