POP3 Protection Settings. How to enable and configure POP3 protection for your Windows Server.
Intrusion prevention system for your Windows Server

POP3 Brute-Force Protection

POP3 Protection Overview

RdpGuard protects your POP3 server from brute-force attacks.

It works with POP3 ports or logs on your server to detect and block attacker's IP addresses when the number of failed login attempts from the single IP address reaches a set limit.

Check the instructions below to learn how to enable and configure POP3 protection.

To Enable and Configure POP3 Protection

Start RdpGuard Dashboard and click on the link next to POP3

pop3 protection link

POP3 Protection Link in RdpGuard Dashboard

The POP3 Settings dialog will open:

pop3 detection engine settings

POP3 Detection Engine Settings

Monitoring method for POP3 protocol

The following monitoring methods are supported for POP3 protocol:

Log based monitoring

The default option recommended for POP3 monitoring is through Logs. This method involves monitoring logs of a specific POP3 server and is more efficient in terms of resource usage compared to monitoring network traffic. Moreover, it also supports SSL/TLS connections and detection of usernames.

POP3 Server

The following POP3 servers are supported for now:

Log files directory

Specify log files directory used by selected POP3 server.

Traffic based monitoring

The alternative option for monitoring POP3 is through traffic. This method can be used with any POP3 server, but consumes more resources compared to monitoring via logs. It's also important to note that this method does not provide support for SSL/TLS connections or detection of usernames.

Traffic based POP3 monitoring

POP3 Monitoring via Traffic

The following traffic based monitoring methods are supported

  • WinPcap - Works on all Windows Editions, WinPcap must be installed.
  • Raw Sockets - Does not work on Windows Server 2008 or with firewalls.

POP3 port

You may specify multiple comma-separated ports for POP3 traffic monitoring.

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