diff --git a/Dockerfile b/Dockerfile
index f3bd086..0c93b7a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -35,6 +35,5 @@ RUN chown root /var/spool/postfix/pid
 
 EXPOSE 25 587
 
-VOLUME /etc/ssl/mail
-
 ADD /rootfs /
+
diff --git a/rootfs/etc/confd/templates/master.cf.tmpl b/rootfs/etc/confd/templates/master.cf.tmpl
index fcb28bb..b62d9ac 100644
--- a/rootfs/etc/confd/templates/master.cf.tmpl
+++ b/rootfs/etc/confd/templates/master.cf.tmpl
@@ -26,3 +26,5 @@ virtual   unix  -       n       n       -       -       virtual
 lmtp      unix  -       -       n       -       -       lmtp
 anvil     unix  -       -       n       -       1       anvil
 scache    unix  -       -       n       -       1       scache
+postlog   unix-dgram n  -       n       -       1       postlogd
+