If it works, then it is ok. But my system shows permissions as follows:
Code:
[czaveri@arihant ~]$ ls -al //opt/zimbra/postfix-2.2.9/
total 28
drwxr-xr-x 7 root root 4096 Sep 27 04:08 .
drwxr-xr-x 48 root root 4096 Sep 27 04:12 ..
drwxrwxrwx 2 root postfix 4096 Oct 18 04:34 conf
drwxr-xr-x 2 root root 4096 Sep 27 04:08 libexec
drwxr-xr-x 5 root root 4096 Sep 27 04:08 man
drwxr-xr-x 2 root root 4096 Sep 27 04:08 sbin
drwxr-xr-x 16 root postfix 4096 Sep 27 04:08 spool
[czaveri@arihant ~]$ ls -al /opt/zimbra/postfix-2.2.9/conf
total 216
drwxrwxrwx 2 root postfix 4096 Oct 18 04:34 .
drwxr-xr-x 7 root root 4096 Sep 27 04:08 ..
-rw-r--r-- 1 root postfix 15647 Jul 13 06:46 access
-rw-r--r-- 1 root postfix 8240 Jul 13 06:46 aliases
-rw-r--r-- 1 root postfix 10947 Jul 13 06:46 canonical
-rw-r--r-- 1 root postfix 9622 Jul 13 06:46 generic
-rw-r--r-- 1 root postfix 16393 Jul 13 06:46 header_checks
-rw-r--r-- 1 root postfix 11942 Jul 13 06:46 LICENSE
-rw-r--r-- 1 zimbra zimbra 1599 Oct 18 04:34 main.cf
-rw-r--r-- 1 root postfix 14379 Jul 13 06:46 main.cf.default
-rw-r--r-- 1 root postfix 1939 Jul 13 06:46 makedefs.out
-rw-r--r-- 1 root postfix 5120 Sep 25 08:43 master.cf
-rw-r--r-- 1 root postfix 17077 Jul 13 06:46 postfix-files
-rwxr-xr-x 1 root postfix 6366 Jul 13 06:46 postfix-script
-rwxr-xr-x 1 root postfix 22018 Jul 13 06:46 post-install
-rw-r--r-- 1 root postfix 1024 Oct 18 09:37 prng_exch
-rw-r--r-- 1 root postfix 6523 Jul 13 06:46 relocated
-rw-r--r-- 1 root postfix 1629 Jul 13 06:46 TLS_LICENSE
-rw-r--r-- 1 root postfix 11033 Jul 13 06:46 transport
-rw-r--r-- 1 root postfix 11732 Jul 13 06:46 virtual