Configure auto_whitelist senders.

milter.cfg

@@ -8,7 +8,7 @@ tempdir = /var/log/milter/save
 log_headers = 0
 # connection ips and hostnames are matched against this glob style list
 # to recognize internal senders.
-;internal_connect = 192.168.*.*
+;internal_connect = 192.168.*.*,127.*
 
 # mail that is not an internal_connect and claims to be from an
 # internal domain is rejected.  Furthermore, internal mail that
@@ -17,7 +17,7 @@ log_headers = 0
 # flexible.  However, SPF is not currently checked for outgoing
 # (internal_connect) mail because it doesn't yet handle authorizing 
 # internal IPs locally.
-;internal_domains = mycorp.com
+;internal_domains = mycorp.com,localhost.localdomain
 
 # connections from a trusted relay can trust the first Received header
 # SPF checks are bypassed for internal connections and trusted relays.
@@ -146,7 +146,13 @@ blind = 1
 # only EXTERNAL messages are dspam filtered
 ;dspam_dict=/var/lib/dspam/moderator.dict
 
-# Opt-opt recipients from dspam screening and header triage
+# Recipients of mail sent from these senders are added to the auto_whitelist.
+# Auto_whitelisted senders with an SPF PASS are never rejected by dspam, and
+# messages from auto_whitelisted senders will be used to train screener
+# dictionaries as innocent mail.
+;whitelist_senders = @mycorp.com
+
+# Opt-out recipients entirely from dspam screening and header triage
 ;dspam_exempt=getitall@mycorp.com
 # Do not scan mail (ostensibly) from these senders
 ;dspam_whitelist=getitall@sender.com