hostlist relay_hosts = 10.0.0.4
hostlist auth_relay_hosts = 10.0.0.3 : 10.0.0.4
+acl_smtp_connect = check_connect
acl_smtp_etrn = check_etrn
acl_smtp_expn = check_expn
acl_smtp_rcpt = check_recipient
begin acl
+check_connect:
+ warn hosts = 10.0.0.6
+ control = allow_auth_unadvertised
+ accept
+
check_recipient:
warn hosts = 10.0.0.5
message = authentication-failed: $authentication_failed