<pre>chmod 600 /etc/postfix/sasl_passwd
chmod 600 /etc/postfix/sasl_passwd.db
chmod 600 /etc/postfix/tsl_policytls_policychmod 600 /etc/postfix/tsl_policytls_policy.db</pre><!--
chown postfix /etc/postfix/sasl_passwd
chown postfix /etc/postfix/sasl_passwd.db