Add -g option for greylisting support for spamd. The greylisting techinque

originates from a paper by Evan Harris which can be found at
http://projects.puremagic.com/greylisting/. This implementation makes
spamd allow for non-blacklisted addresses to be treated as "greylisted".
where they are tracked in a db file, and whitelisted by addition to a
pf table when the same envelope from and to are retried from the same
source IP address. Testing by many, ok deraadt@

1 files changed, 61 insertions, 0 deletions

diff --git a/usr.sbin/spamdb/spamdb.8 b/usr.sbin/spamdb/spamdb.8
new file mode 100644
index 00000000000..85d676ef119
--- /dev/null
+++ b/usr.sbin/spamdb/spamdb.8
@@ -0,0 +1,61 @@
+.\"	$OpenBSD: spamdb.8,v 1.1 2004/02/26 07:28:55 beck Exp $
+.\"
+.\" Copyright (c) 2004 Bob Beck.  All rights reserved.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd February 16, 2004
+.Dt SPAMDB 8
+.Os
+.Sh NAME
+.Nm spamdb
+.Nd spamd database tool
+.Sh SYNOPSIS
+.Nm spamdb
+.Bk -words
+.Op Fl a Ar ip
+.Op Fl d Ar ip
+.Ek
+.Sh DESCRIPTION
+.Nm
+manipulates the spamd database in
+.Pa /var/db/spamd
+used for
+.Xr spamd 8
+greylisting.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl a Ar ip
+Add or update a whitelist entry for IP address "ip".
+Updates time last seen to now.
+.It Fl d Ar ip
+Delete a whitelist entry for IP address "ip".
+.El
+.Pp
+If invoked without any arguments,
+.Nm
+lists the contents of the database
+in a text format.
+.Sh FILES
+/var/db/spamd
+.Sh SEE ALSO
+.Xr spamd.conf 5 ,
+.Xr spamd 8 ,
+.Xr spamd-setup 8
+.Sh HISTORY
+The
+.Nm
+command
+appeared in
+.Ox 3.5 .