From 283ac70bb92e79f48f513913f2fa565b1fed0a13 Mon Sep 17 00:00:00 2001
From: Paul Adams <paul@thoughtcriminal.co.uk>
Date: Mon, 23 Apr 2018 19:42:47 +0100
Subject: [PATCH] don't update permissions on non-existent file (#956)

---
 target/start-mailserver.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/target/start-mailserver.sh b/target/start-mailserver.sh
index c6e79e55..e50c6cb9 100644
--- a/target/start-mailserver.sh
+++ b/target/start-mailserver.sh
@@ -1073,8 +1073,10 @@ function _setup_postfix_relay_hosts() {
 		fi
 	fi
 
-	chown root:root /etc/postfix/sasl_passwd
-	chmod 0600 /etc/postfix/sasl_passwd
+	if [ -f /etc/postfix/sasl_passwd ]; then
+		chown root:root /etc/postfix/sasl_passwd
+		chmod 0600 /etc/postfix/sasl_passwd
+	fi
 	# end /etc/postfix/sasl_passwd
 
 	# setup /etc/postfix/relayhost_map