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2pyspf-milter(8)             System Manager's Manual            pyspf-milter(8)
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NAME

7       pyspf-milter - SPF checking filter for MTAs
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SYNOPSIS

10       pyspy-milter [configfile]
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DESCRIPTION

14       pyspf-milter implements the SPF standard for checking e-mail messages
15       on a (mostly) per-domain basis.
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17       pyspf-milter uses the milter interface, originally distributed as part
18       of version 8.11 of sendmail(8), to provide SPF checking services for
19       mail transiting a milter-aware MTA.
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OPTIONS

23       See    policyd-spf.conf (5) for information about available options.
24              With the exception of specifying the configuration file to use,
25              pyspf-milter does not support command line option switches.
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NOTES

29       When using DNS timeouts be sure not to use a timeout that is larger
30       than the timeout being used for interaction between sendmail and the
31       filter.  Otherwise, the MTA could abort a message while waiting for a
32       reply from the filter, which in turn is still waiting for a DNS reply.
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EXIT STATUS

36       Filter exit status codes are selected according to sysexits(3).
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HISTORY

40       SPF is an amalgam of several earlier proposals.  It was originally
41       specified in RFC 4408.  The current specification is RFC 7208.  The SPF
42       related processing was developed for use with the Postfix unique policy
43       service in the pypolicyd-spf project.  When the milter interface was
44       added, the project was renamed SPF Engine.
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VERSION

48       This man page covers version 3.0.0 of pyspf-milter.
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51       Copyright (c) 2005-2008, Sendmail, Inc. and its suppliers.  All rights
52       reserved.
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54       Copyright (c) 2009-2013, 2015, The Trusted Domain Project.  All rights
55       reserved.
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57       Copyright (c) 2018, 2019, 2022 Scott Kitterman <scott@kitterman.com>
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SEE ALSO

60       policyd-spf.conf(5), sendmail(8)
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62       Sendmail Operations Guide
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64       RFC5321 - Simple Mail Transfer Protocol
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66       RFC5322 - Internet Messages
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68       RFC7208 - Sender Policy Framework (SPF) for Authorizing Use of Domains
69       in Email, Version 1
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71       RFC7601 - Message Header Field for Indicating Message Authentication
72       Status
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76                                                               pyspf-milter(8)
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