Provided by: spfquery_1.2.10-7build3_amd64 bug

NAME

       spfquery,  spfquery.libspf2 - checks if an IP address is an SPF-authorized SMTP sender for
       a domain.

SYNOPSIS

       spfquery {-i|--ip} ip-address {-s|--sender} [local-part@]domain [{-h|--helo} domain-name]
                [--rcpt-to email-address(es)] [CONTROL-OPTIONS]

       spfquery {-f|--file} datafile [CONTROL-OPTIONS]

       spfquery {--help|-v|--version}

DESCRIPTION

       This  manual  page  documents briefly the spfquery command. It was written for the Debian®
       distribution because the original program does not have a manual page.

       spfquery performs Sender Policy Framework (SPF) authorization checks based on the command-
       line  arguments  or  data given in a file or on standard input. For information on SPF see
       http://www.openspf.org.

OPTIONS

       Options are divided into two groups: Data options, which must be given, though just enough
       of  them to specify a query; and control options, which are optional and control the local
       policy, behaviour and output format of spfquery.

       This programs follows the GNU getopt_long_only(3) command line syntax: Long options can be
       given  with  one  or  two dashes and can be abbreviated to a prefix long enough to be non-
       ambiguous. If an option starting with a single dash doesn't match a  long  option,  it  is
       taken  as a short option with a following parameter, if applicable. An equals sign between
       the option name and the parameter is optional for both short and long options.

   Data options
       The --file option conflicts with all the other data options. The --helo and --rcpt-to  are
       optional.

       -f, --file filename
              Read SPF data from filename. Specify “-” to read from standard input.

              The file should consist of one line per query, each query line consisting of the IP
              address, sender adress, and optional HELO string, separated by spaces.

              Note Local parts containing spaces are currently not supported.

       -i, --ip ip-address
              Specify the IP address of the remote host that is delivering the mail.

       -s, --sender [local-part@]domain
              Specify the email address that was used as the  envelope  sender.  If  no  username
              (local part) is given, “postmaster” will be assumed.

       -h, --helo domain-name
              Specify that domain-name was provided in the SMTP HELO (or EHLO) command.

       -r, --rcpt-to rcpt-address[,rcpt-address,...]
              Specify  the  recipients  as comma-separated list. Any secondary mail exchangers of
              all recipient domains are automatically authorized.

   Control options
       -d, --debug[=level]
              Turn on debugging output.

       -l, --local spf-terms
              Test against spf-terms before the final (implicit or  explicit)  “all”  in  an  SPF
              record. This can be used to implement a local policy for whitelisting.

       -t, --trusted [1]
              Check  the  sender  domain  with  trusted-forwarder.org.   This  is  a non-standard
              feature.

       -t 0, --trusted 0
              Do not check the sender domain with trusted-forwarder.org. This is the default.

       -g, --guess spf-mechanisms
              Test the sender domain against spf-mechanisms if the domain has no SPF record.

       -e, --default-explanation string
              Default explanation string to use if the SPF record does not specify an explanation
              string itself.

       -m, --max-lookup number
              Maximum number of DNS lookups to allow.

       -c, --sanitize [0|1]
              Do  [not]  sanitize  the  output by condensing consecutive whitespace into a single
              space and replacing  non-printable  characters  with  question  marks.  Enabled  by
              default.

       -n, --name hostname
              Use  hostname  as  the  name of the local system instead of “spfquery” (the name is
              used in the output).

       -k, --keep-comments
              Print comments found when reading from a file.

       -a, --override ...

       -z, --fallback ...
              Provide override and fallback SPF records for  certain  domains.   Not  implemented
              yet.   spfquery would act as if the specified records were present before and after
              any existing record, respectively, of those domains.

       --help Show summary of options.

       -v, --version
              Show version of program.

DIAGNOSTICS

       The output ordinarily consists of four lines:

       1.  the result code;

       2.  the explanation, suitable for use in an SMTP response message,  empty  except  when  a
           rejection (permanent or temporary) makes sense;

       3.  the header comment on its own;

       4.  the  Received-SPF  header  field  as  defined in RFC 4408 section 7, incorporating the
           header comment.

       If errors (including no SPF record found!) occur during  processing,  one  or  more  error
       blocks will be prepended.  These start with “StartError“ and end with “EndError“.

       The result codes and their corresponding exit codes are as follows:

       1  neutral
              The  sender domain explicitly makes no assertion about the ip-address.  This result
              must be interpreted exactly as if no SPF record at all existed.

       2  pass
              The ip-address is authorized to send mail for the sender domain.

       3  fail
              The ip-address is unauthorized to send mail for the sender domain.

       4  softfail
              The ip-address is not authorized to send mail for the sender domain, but the sender
              domain  cannot  or  does  not wish to make a strong assertion that no such mail can
              ever come from it.

       5  none
              No SPF record was found.

       6  error (temporary)
              A transient error occurred (e.g. failure to  reach  a  DNS  server),  preventing  a
              result from being reached.

       7  unknown (permanent error)
              One or more SPF records could not be interpreted.

EXAMPLES

       spfquery -ip=11.22.33.44 -sender=user@aol.com -helo=spammer.tld
       spfquery -f test_data
       echo "127.0.0.1 myname@mydomain.com helohost.com" | spfquery -f -

SEE ALSO

       spftest(1), spfd(8)

AUTHOR

       spfquery was written by Wayne Schlitt.

       This manual page was written by Magnus Holmgren for the Debian® system (but may be used by
       others).  Heavily   inspired   by   the   spfquery   manpage   of   libmail-spf-query-perl
       (spfquery.mail-spf-query-perl(1))  by  Julian Mehnle.  Also based on the command-line help
       of spfquery.

COPYRIGHT

       Copyright © 2007 Magnus Holmgren. Permission is granted to copy, distribute and/or  modify
       this    document    under    the    terms    of    the   two-clause   BSD   License.   See
       /usr/share/doc/spfquery/copyright.