From Debian package 0.2.20100524-2

  * Allow postfix_local_t to run sendmail for programs like vacation

Also changed milter_stream_connect_all from smtp to smtpd - I don't know why.

Index: policy/modules/services/postfix.te
===================================================================
--- policy/modules/services/postfix.te.orig
+++ policy/modules/services/postfix.te
@@ -26,6 +26,9 @@
 postfix_server_domain_template(local)
 mta_mailserver_delivery(postfix_local_t)
 
+# allow postfix_local_t to run programs like vacation that send mail
+mta_sendmail_domtrans(postfix_local_t, postfix_postdrop_t)
+
 # Program for creating database files
 type postfix_map_t;
 type postfix_map_exec_t;
@@ -581,7 +584,7 @@
 ')
 
 optional_policy(`
-	milter_stream_connect_all(postfix_smtp_t)
+	milter_stream_connect_all(postfix_smtpd_t)
 ')
 
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