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To enable spamd you need:

1) Enable spamd in /etc/rc.conf with the following line:
   obspamd_enable="YES"
   obspamlogd_enable="YES"

   For PF you can specify a dedicated pflog interface with parameter
   obspamlogd_pflog_if. This interface will be created and removed
   by the rc script of spamlogd.

2) Configuration template is available in %%PREFIX%%/etc/spamd as
   spamd.conf.sample file.  Copy then to spamd.conf file and
   edit to suit your needs.

3) mount fdescfs to /dev/fd with the following line in /etc/fstab
	fdescfs  	/dev/fd  	fdescfs rw 	0 	0

   Note for XEN users:
   The XEN kernel ships without modules, therefore you have to add
   the following lines to the kernel config and build a new kernel.
	options FDESCFS
	device	pf
	device	pflog

4) Add following lines to the pf.conf(5)

  table <spamd-white> persist
  no rdr inet proto tcp from <spamd-white> to any \
      port smtp
  rdr pass inet proto tcp from any to any \
      port smtp -> 127.0.0.1 port spamd

FreeBSD only features (not in OpenBSD):
  - sync for spamdb (parameter -Y)
    See %%PREFIX%%/%%DOCSDIR%%/ for usage.

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