I inserted whitelist_from *@domain.com /opt/zimbra/conf/salocal.cf.in file.
Then I received the following warning message
Warnings
2.6.7.2z/conf/./di...
2 not owned by root: /opt/zimbra/postfix-2.6.7.2z/conf/main.cf--------
postfix-script (total: 10)
2 group or other writable: /opt/zimbra/postfix-
2 not owned by root: /opt/zimbra/data/postfix/spool
2 not owned by root: /opt/zimbra/postfix-2.6.7.2z/conf/master.cf
2 not owned by root: /opt/zimbra/postfix-2.6.7.2z/conf/master.cf.in

How to solve this