password encryption for mail users and roundcube error log

Hi there,

i use CentOS 7.2 with Plesk 12.5 MU#52

I have found the PLAIN TEXT password for mail_users in:
/usr/local/psa/admin/bin/mail_auth_view and in /var/log/plesk-roundcube/errors!

/usr/local/psa/admin/bin/mail_auth_view
Authentication database contents:
+--------------------------------------+-----+--------------------------------------+
| address |flags| password |...

password encryption for mail users and roundcube error log