drwxr-xr-x  6 postfix  postfix   4096 Jul 30 19:45 postfix

And the contents:

drwxr-x--- 3 opendkim opendkim  4096 Jul 30 19:24 dkim
-rw-r--r-- 1 postfix  postfix     96 Jul 30 19:16 dynamicmaps.cf
drwxr-xr-x 2 postfix  postfix   4096 Jan 22  2023 dynamicmaps.cf.d
-rw-r--r-- 1 postfix  postfix    114 Jul 30 19:45 header_checks
-rw-r--r-- 1 postfix  postfix     33 Jul 30 19:45 login_maps.pcre
-rw-r--r-- 1 postfix  postfix   2977 Jul 31 13:57 main.cf
-rw-r--r-- 1 postfix  postfix  27124 Jul 30 19:16 main.cf.proto
lrwxrwxrwx 1 postfix  postfix     31 Jul 30 19:17 makedefs.out -> /usr/share/postfix/makedefs.out
-rw-r--r-- 1 postfix  postfix   7096 Jul 30 19:45 master.cf
-rw-r--r-- 1 postfix  postfix   6247 Jul 30 19:16 master.cf.proto
-rw-r--r-- 1 postfix  postfix  10268 Jan 22  2023 postfix-files
drwxr-xr-x 2 postfix  postfix   4096 Jul 30 19:17 postfix-files.d
-rwxr-xr-x 1 postfix  postfix  11651 Jan 22  2023 postfix-script
-rwxr-xr-x 1 postfix  postfix  29872 Jan 22  2023 post-install
drwxr-xr-x 2 postfix  postfix   4096 Jan 22  2023 sasl

And for /etc/postfix/dkim folder:

-rwxr-x--- 1 opendkim opendkim  100 Jul 30 19:24 keytable
drw-rw---- 2 opendkim opendkim 4096 Jul 30 19:45 magmaus3.eu.org
-rwxr-x--- 1 opendkim opendkim   50 Jul 30 19:24 signingtable
-rwxr-x--- 1 opendkim opendkim   22 Jul 30 19:24 trustedhosts