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Table of Contents

3. Mail Server Architecture

3.1. Generic Server Configuration

3.1.1. Running Services

3.1.2. Other Generic Server Parameters

3.1.3. DNR Settings

3.2. Services and Modules

3.2.1. SMTP Receiving

3.2.2. Processing

3.2.3. SMTP Sending

3.2.7. Reporting

3.2.7.1. Reporting Parameters

3.2.10. FTP Backup Service

3.2.11. RPOP Service

3.3. Connectivity and Threading

3.3.1. Listeners

3.4. Clustering Support

3.4.1. Cluster Overview

3.4.1.1. LDAP Introduction

3.4.1.1.1. Basic Directory Setup

3.4.1.1.2. LDAP Entry Structure

3.4.1.1.3. LDAP Authentication

3.4.1.2. AXIGEN Mapping System

3.4.1.3. AXIGEN Authentication System

3.4.1.4. AXIGEN Front-End Services Setup

3.4.1.4.1. The SMTP Proxy

3.4.1.4.2. The IMAP and POP3 Proxies

3.4.1.4.3. The WebMail Proxy

3.4.1.4.4. Mapping Setup

3.4.1.5. AXIGEN Back-End Services Setup

3.4.2. LDAP Routing

3.4.2.1. Configuring Mapping Parameters

3.4.2.2. POP3 Proxy Service

3.4.2.3. IMAP Proxy Service

3.4.2.4. Webmail Proxy Service

3.4.3. AXIGEN LDAP Authentication

3.4.4. Integrating Active Directory into a cluster environment

3.4.5. Exotic Cluster Setups

3.5. Groupware and collaboration

3.5.1. Personal Organizer & AXIGEN Outlook Connector

3.5.2. Folders and permissions

3.4. Clustering Support

Having the system administrators' needs in mind, AXIGEN provides Clustering Support starting with version 3.0. Clustering support is based on OpenLDAP integration with AXIGEN and allows routing for the SMTP Incoming, POP3 Proxy and IMAP proxy services. This new feature enables system administrators to spread mailboxes on several AXIGEN servers and have a separate machine that routes POP3/IMAP connections to the appropriate mailbox server.

Another important feature of the OpenLDAP integration with the AXIGEN Mail Server is the LDAP Authentication mechanism. This new method is available for all the AXIGEN services that require authentication: SMTP In, POP3, IMAP, WebMail, POP3 Proxy and IMAP Proxy.

For a detailed example on how to setup a high availability distributed solution see this related article: Implementing, Deploying
and Managing a High Availability Distributed Solution on AXIGEN Mail Server.

See subsections of current page for more details:

Cluster Overview
LDAP Routing
AXIGEN LDAP Authentication
Integrating Active Directory into a cluster environment
Exotic Cluster Setups

Axigen is a powerful, award-winning Windows & Linux mail server. A free mail server software is available for immediate download and adds free support services, as well as the business mail server solution, which also includes features like personal organizer, antivirus, anti-spam or advanced security policies. The carrier-class ISP mail server solution completes the Axigen product range, with optional clustering support & delegated administration.