1 0b081549 2025-06-02 kirill .\" $OpenBSD$
3 0b081549 2025-06-02 kirill .\" Copyright (c) 2024 Kirill A. Korinsky <kirill@korins.ky>>
4 0b081549 2025-06-02 kirill .\" Copyright (c) 2019 Martijn van Duren <martijn@openbsd.org>
6 0b081549 2025-06-02 kirill .\" Permission to use, copy, modify, and distribute this software for any
7 0b081549 2025-06-02 kirill .\" purpose with or without fee is hereby granted, provided that the above
8 0b081549 2025-06-02 kirill .\" copyright notice and this permission notice appear in all copies.
10 0b081549 2025-06-02 kirill .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 0b081549 2025-06-02 kirill .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 0b081549 2025-06-02 kirill .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 0b081549 2025-06-02 kirill .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 0b081549 2025-06-02 kirill .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 0b081549 2025-06-02 kirill .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 0b081549 2025-06-02 kirill .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 0b081549 2025-06-02 kirill .Dd $Mdocdate$
19 0b081549 2025-06-02 kirill .Dt FILTER-AUTH 8
22 0b081549 2025-06-02 kirill .Nm filter-auth
23 96ee4a27 2025-06-02 kirill .Nd authenticate email and add Authentication-Results header
24 0b081549 2025-06-02 kirill .Sh SYNOPSIS
27 96ee4a27 2025-06-02 kirill .Op Ar authserv-id
28 0b081549 2025-06-02 kirill .Sh DESCRIPTION
30 96ee4a27 2025-06-02 kirill verifies the DKIM and ARC signatures of messages, the SPF policy and
31 96ee4a27 2025-06-02 kirill adds an Authentication-Results header to the message. If the
33 96ee4a27 2025-06-02 kirill flag is specified, it adds the ARC-Authentication-Results header
34 96ee4a27 2025-06-02 kirill instead, with the next unused
36 96ee4a27 2025-06-02 kirill value in the chain. This filter gets used
37 96ee4a27 2025-06-02 kirill .Em authserv-id
38 96ee4a27 2025-06-02 kirill from OpenSMTPD which can be overridden by the
39 96ee4a27 2025-06-02 kirill .Ar authserv-id
41 0b081549 2025-06-02 kirill .Sh SEE ALSO
42 0b081549 2025-06-02 kirill .Xr filter-admdscrub 8
43 0b081549 2025-06-02 kirill .Xr filter-dkimsign 8
44 0b081549 2025-06-02 kirill .Xr smtpd 8
45 96ee4a27 2025-06-02 kirill .Sh STANDARDS
46 96ee4a27 2025-06-02 kirill .\" RFC7208
47 96ee4a27 2025-06-02 kirill .\" RFC8601
49 96ee4a27 2025-06-02 kirill .%A J. Klensin
50 96ee4a27 2025-06-02 kirill .%D October 2008
51 96ee4a27 2025-06-02 kirill .%R RFC 5321
52 96ee4a27 2025-06-02 kirill .%T Simple Mail Transfer Protocol
56 96ee4a27 2025-06-02 kirill .%A D. Crocker, Ed.
57 96ee4a27 2025-06-02 kirill .%Q Brandenburg InternetWorking
58 96ee4a27 2025-06-02 kirill .%A T. Hansen, Ed.
59 96ee4a27 2025-06-02 kirill .%Q AT&T Laboratories
60 96ee4a27 2025-06-02 kirill .%A M. Kucherawy, Ed.
61 96ee4a27 2025-06-02 kirill .%Q Cloudmark
62 96ee4a27 2025-06-02 kirill .%D September 2011
63 96ee4a27 2025-06-02 kirill .%R RFC 6376
64 96ee4a27 2025-06-02 kirill .%T DomainKeys Identified Mail (DKIM) Signatures
68 96ee4a27 2025-06-02 kirill .%A S. Kitterman
69 96ee4a27 2025-06-02 kirill .%Q Kitterman Technical Services
70 96ee4a27 2025-06-02 kirill .%D April 2014
71 96ee4a27 2025-06-02 kirill .%R RFC 7208
72 96ee4a27 2025-06-02 kirill .%T Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1
76 96ee4a27 2025-06-02 kirill .%A M. Kucherawy
77 96ee4a27 2025-06-02 kirill .%D May 2019
78 96ee4a27 2025-06-02 kirill .%R RFC 8601
79 96ee4a27 2025-06-02 kirill .%T Message Header Field for Indicating Message Authentication Status
81 96ee4a27 2025-06-02 kirill .Sh AUTHORS
82 96ee4a27 2025-06-02 kirill .An Kirill A. Korinsky Aq Mt kirill@korins.ky
83 96ee4a27 2025-06-02 kirill .An Martijn van Duren Aq Mt martijn@openbsd.org
84 96ee4a27 2025-06-02 kirill .An Gilles Chehade Aq Mt gilles@poolp.org
