==== Required information ====
- iRedMail version: 0.8.3
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Linux/BSD distribution name and version: Ubuntu 12.04.2 LTS
- Related log if you're reporting an issue:
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How Iredmail counteracts scan ports and compromised? Brutforce passwords and etc.
How safe scripts Web interface to expose the server to the Internet?