/usr/share/postfixadmin/templates/ is in postfixadmin 2.3.7-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/postfixadmin/templates/admin_create-admin.php
/usr/share/postfixadmin/templates/admin_create-domain.php
/usr/share/postfixadmin/templates/admin_edit-admin.php
/usr/share/postfixadmin/templates/admin_edit-domain.php
/usr/share/postfixadmin/templates/admin_list-admin.php
/usr/share/postfixadmin/templates/admin_list-domain.php
/usr/share/postfixadmin/templates/broadcast-message.php
/usr/share/postfixadmin/templates/create-alias-domain.php
/usr/share/postfixadmin/templates/create-alias.php
/usr/share/postfixadmin/templates/create-mailbox.php
/usr/share/postfixadmin/templates/edit-alias.php
/usr/share/postfixadmin/templates/edit-mailbox.php
/usr/share/postfixadmin/templates/edit-vacation.php
/usr/share/postfixadmin/templates/fetchmail.php
/usr/share/postfixadmin/templates/footer.php
/usr/share/postfixadmin/templates/header.php
/usr/share/postfixadmin/templates/index.php
/usr/share/postfixadmin/templates/list-virtual.php
/usr/share/postfixadmin/templates/login.php
/usr/share/postfixadmin/templates/main.php
/usr/share/postfixadmin/templates/menu.php
/usr/share/postfixadmin/templates/message.php
/usr/share/postfixadmin/templates/overview-get.php
/usr/share/postfixadmin/templates/password.php
/usr/share/postfixadmin/templates/search.php
/usr/share/postfixadmin/templates/sendmail.php
/usr/share/postfixadmin/templates/users_edit-alias.php
/usr/share/postfixadmin/templates/users_login.php
/usr/share/postfixadmin/templates/users_main.php
/usr/share/postfixadmin/templates/users_menu.php
/usr/share/postfixadmin/templates/users_password.php
/usr/share/postfixadmin/templates/users_vacation.php
/usr/share/postfixadmin/templates/viewlog.php