1 fe371fc9 2019-09-05 martijn .\"	$OpenBSD$
 2 fe371fc9 2019-09-05 martijn .\"
 3 fe371fc9 2019-09-05 martijn .\" Copyright (c) 2019 Martijn van Duren <martijn@openbsd.org>
 4 fe371fc9 2019-09-05 martijn .\"
 5 fe371fc9 2019-09-05 martijn .\" Permission to use, copy, modify, and distribute this software for any
 6 fe371fc9 2019-09-05 martijn .\" purpose with or without fee is hereby granted, provided that the above
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 9 fe371fc9 2019-09-05 martijn .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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12 fe371fc9 2019-09-05 martijn .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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16 fe371fc9 2019-09-05 martijn .\"
17 fe371fc9 2019-09-05 martijn .Dd $Mdocdate$
18 fe371fc9 2019-09-05 martijn .Dt FILTER-DKIMSIGN 8
19 fe371fc9 2019-09-05 martijn .Os
20 fe371fc9 2019-09-05 martijn .Sh NAME
21 fe371fc9 2019-09-05 martijn .Nm filter-dkimsign
22 fe371fc9 2019-09-05 martijn .Nd add dkim signature to messages
23 fe371fc9 2019-09-05 martijn .Sh SYNOPSIS
24 fe371fc9 2019-09-05 martijn .Nm
25 fe371fc9 2019-09-05 martijn .Op Fl tz
26 fe371fc9 2019-09-05 martijn .Op Fl a Ar algorithm
27 fe371fc9 2019-09-05 martijn .Op Fl c Ar canonicalization
28 fe371fc9 2019-09-05 martijn .Op Fl h Ar headers
29 fe371fc9 2019-09-05 martijn .Op Fl x Ar seconds
30 fe371fc9 2019-09-05 martijn .Fl d Ar domain
31 fe371fc9 2019-09-05 martijn .Fl k Ar file
32 fe371fc9 2019-09-05 martijn .Fl s Ar selector
33 fe371fc9 2019-09-05 martijn .Sh DESCRIPTION
34 fe371fc9 2019-09-05 martijn .Nm
35 fe371fc9 2019-09-05 martijn adds a dkim signature to the message.
36 fe371fc9 2019-09-05 martijn The following flags are supported:
37 fe371fc9 2019-09-05 martijn .Bl -tag -width Ds
38 fe371fc9 2019-09-05 martijn .It Fl a Ar algorithm
39 fe371fc9 2019-09-05 martijn The algorithm to use.
40 fe371fc9 2019-09-05 martijn This implementation only supports rsa cryptography.
41 fe371fc9 2019-09-05 martijn Only sha256 should be used for hashing, since other algorithms are most likely
42 fe371fc9 2019-09-05 martijn not supported by verifiers.
43 fe371fc9 2019-09-05 martijn Defaults to
44 fe371fc9 2019-09-05 martijn .Ar rsa-sha256 .
45 fe371fc9 2019-09-05 martijn .It Fl c Ar canonicalization
46 fe371fc9 2019-09-05 martijn The canonicalization algorithm used to sign the messge.
47 fe371fc9 2019-09-05 martijn Defaults to
48 fe371fc9 2019-09-05 martijn .Ar simple/simple .
49 fe371fc9 2019-09-05 martijn .It Fl d Ar domain
50 fe371fc9 2019-09-05 martijn The domain where the public key can be found.
51 fe371fc9 2019-09-05 martijn .It Fl h Ar headers
52 fe371fc9 2019-09-05 martijn The email headers which are included in the mail signature.
53 fe371fc9 2019-09-05 martijn Per RFC this option requires at least the from header to be included.
54 fe371fc9 2019-09-05 martijn The headers are specified by separating them with a colon.
55 fe371fc9 2019-09-05 martijn The default is
56 fe371fc9 2019-09-05 martijn from:reply-to:subject:date:to:cc:resent-date:resent-from:resent-to:resent-cc:in-reply-to:references:list-id:list-help:list-unsubscribe:list-subscribe:list-post:list-owner:list-archive .
57 fe371fc9 2019-09-05 martijn .It Fl k Ar file
58 fe371fc9 2019-09-05 martijn .Ar file
59 fe371fc9 2019-09-05 martijn should point to a file containing the RSA private key to sign the messages.
60 fe371fc9 2019-09-05 martijn .It Fl s Ar selector
61 fe371fc9 2019-09-05 martijn The selector within the _domainkey subdomain of
62 fe371fc9 2019-09-05 martijn .Ar domain
63 fe371fc9 2019-09-05 martijn where the public key can be found.
64 fe371fc9 2019-09-05 martijn .It Fl t
65 fe371fc9 2019-09-05 martijn Add the time of signing to the dkim header.
66 fe371fc9 2019-09-05 martijn .It Fl x Ar seconds
67 fe371fc9 2019-09-05 martijn Add the amount of
68 fe371fc9 2019-09-05 martijn .Ar seconds
69 fe371fc9 2019-09-05 martijn the signature is valid to the dkim header.
70 fe371fc9 2019-09-05 martijn .It Fl z
71 fe371fc9 2019-09-05 martijn Add the mail headers used in the dkim signature to the dkim header.
72 fe371fc9 2019-09-05 martijn If a second
73 fe371fc9 2019-09-05 martijn .Fl z
74 fe371fc9 2019-09-05 martijn is specified all headers will be included in the dkim header.
75 fe371fc9 2019-09-05 martijn Useful for debugging purposes.
76 fe371fc9 2019-09-05 martijn .El
77 fe371fc9 2019-09-05 martijn .Sh SEE ALSO
78 fe371fc9 2019-09-05 martijn .Xr smtpd 8