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

IMAP Brute-Force Protection

IMAP Protection Overview

RdpGuard provides effective protection for your IMAP server against brute-force attacks. It does so by monitoring the IMAP port(s) or logs on your server and automatically blocking the attacker's IP address when the number of failed authentication attempts from a single IP address reaches a pre-set limit.

Follow the instructions below to learn how to enable and configure IMAP protection using RdpGuard.

To Enable and Configure IMAP Protection

Start RdpGuard Dashboard and click on the link next to IMAP

imap protection link

IMAP Protection Link in RdpGuard Dashboard

The IMAP Settings dialog will open:

imap detection engine settings

IMAP Detection Engine Settings

Monitoring method for IMAP protocol

The following monitoring methods are supported for IMAP protocol:

Log based monitoring

The recommended default option for IMAP monitoring is via Logs. This method works by monitoring specific IMAP server logs and is more resource-efficient than monitoring traffic. Additionally, it supports SSL/TLS connections and username detection.

IMAP Server

The following IMAP servers are supported for now:

Log files directory

Specify log files directory used by selected IMAP server.

Traffic based monitoring

The second option for IMAP monitoring is via traffic. This method works with any IMAP server, but uses more resources than monitoring via logs. It's worth noting that this method doesn't support SSL/TLS connections or username detection

Traffic based IMAP monitoring

IMAP 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.

IMAP port

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

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