Remove 5s delay in exim4 default configuration

Author: Kristan Kenney

install/deb/exim/exim4.conf.template

@@ -64,7 +64,7 @@ tls_on_connect_ports = 465
 never_users = root
 host_lookup = *
 rfc1413_hosts = *
-rfc1413_query_timeout = 5s
+rfc1413_query_timeout = 0s
 ignore_bounce_errors_after = 2d
 timeout_frozen_after = 7d
 

install/upgrade/versions/latest.sh

@@ -5,3 +5,9 @@
 #######################################################################################
 #######                      Place additional commands below.                   #######
 #######################################################################################
+
+# Remove 5s delay when sending mail through exim4
+if [ -e "/etc/exim4/exim4.conf.template" ]; then
+    echo "(*) Updating exim4 configuration..."
+    sed -i "s|rfc1413_query_timeout = 5s|rfc1413_query_timeout = 0s|g" /etc/exim4/exim4.conf.template
+fi