- added Domainkey-Filter configuration for FreeBSD (thx to hedo)

- bugfixed DKIM verification failure when using .private file-extension (also thx to hedo), fixes #63

templates/misc/configfiles/freebsd/dkim/dkim-filter.conf

@@ -0,0 +1,15 @@
+Syslog yes
+UMask 002
+
+Canonicalization relaxed/simple
+Mode sv
+SubDomains yes
+X-Header yes
+
+KeyList /usr/local/etc/mail/dkim.key
+Domain /usr/local/etc/mail/domains
+LogWhy yes
+
+Socket inet:8891@localhost
+
+# OmitHeaders Return-Path,Received,Comments,Keywords,Bcc,Resent-Bcc,To

templates/misc/configfiles/freebsd/dkim/postfix_dkim_addition.cf

@@ -0,0 +1,7 @@
+#
+# Add these lines to the main.cf to use DKIM
+#
+milter_default_action = accept
+milter_protocol = 2
+smtpd_milters = inet:localhost:8891
+non_smtpd_milters = inet:localhost:8891