1 ad394dcc 2019-03-30 martijn .\"	$OpenBSD$
 2 ad394dcc 2019-03-30 martijn .\"
 3 ad394dcc 2019-03-30 martijn .\" Copyright (c) 2019 Martijn van Duren <martijn@openbsd.org>
 4 ad394dcc 2019-03-30 martijn .\"
 5 ad394dcc 2019-03-30 martijn .\" Permission to use, copy, modify, and distribute this software for any
 6 ad394dcc 2019-03-30 martijn .\" purpose with or without fee is hereby granted, provided that the above
 7 ad394dcc 2019-03-30 martijn .\" copyright notice and this permission notice appear in all copies.
 8 ad394dcc 2019-03-30 martijn .\"
 9 ad394dcc 2019-03-30 martijn .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 ad394dcc 2019-03-30 martijn .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 ad394dcc 2019-03-30 martijn .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 ad394dcc 2019-03-30 martijn .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 ad394dcc 2019-03-30 martijn .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 ad394dcc 2019-03-30 martijn .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 ad394dcc 2019-03-30 martijn .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 ad394dcc 2019-03-30 martijn .\"
17 ad394dcc 2019-03-30 martijn .Dd $Mdocdate$
18 ad394dcc 2019-03-30 martijn .Dt FILTER-DNSBL 8
19 ad394dcc 2019-03-30 martijn .Os
20 ad394dcc 2019-03-30 martijn .Sh NAME
21 ad394dcc 2019-03-30 martijn .Nm filter-dnsbl
22 ad394dcc 2019-03-30 martijn .Nd block senders based on dnsbl
23 ad394dcc 2019-03-30 martijn .Sh SYNOPSIS
24 ad394dcc 2019-03-30 martijn .Nm
25 ad394dcc 2019-03-30 martijn .Op Fl m
26 ad394dcc 2019-03-30 martijn .Ar blacklist
27 ad394dcc 2019-03-30 martijn .Op Ar ...
28 ad394dcc 2019-03-30 martijn .Sh DESCRIPTION
29 ad394dcc 2019-03-30 martijn .Nm
30 ad394dcc 2019-03-30 martijn looks up the ip-address of the sender at the
31 ad394dcc 2019-03-30 martijn .Ar blacklist
32 ad394dcc 2019-03-30 martijn and by default drops the connection if it is found.
33 ad394dcc 2019-03-30 martijn If the
34 ad394dcc 2019-03-30 martijn .Fl m
35 ad394dcc 2019-03-30 martijn flag is specified it will allow the message to continue, but it will be marked
36 ad394dcc 2019-03-30 martijn with an X-Spam and X-Spam-DNSBL header.
37 ad394dcc 2019-03-30 martijn .Sh SEE ALSO
38 ad394dcc 2019-03-30 martijn .Xr smtpd 8