Current File : //proc/self/root/var/softaculous/postfix/notes.txt
1. set $CONF['configured'] = true; and also enter the database details in config.inc.php file in manual installation
2. PHP REQUIREMENT LINK : requirement display on setup page of installation (check composer.json as well).
3. Release date : https://github.com/postfixadmin/postfixadmin/releases/