Email account space hogs
du -ch --max-depth=1 /var/qmail/mailnames/*/ | sort -nr |more
How do you customize an include file?
Place a file with your apache options, named vhost.conf, in the conf directory for the domain.
/usr/local/psa/admin/sbin/websrvmng --reconfigure-vhost --vhost-name=
Then check apache for problems:
service httpd configtest
If no problems, restart apache:
service httpd restart
Default installation leaves you running an open mail relay.
Check Server > Mail
Plesk ships with a default of 127.0.0.1/8. It leaves you with an open relay. If you have the /8 subnet mask there, remove that one and replace it with 127.0.0.1/32. The /32 subnet mask will still allow scripts to send mail from the server, but will close your relay for you.