Table of Contents

1. Mail Server Overview

2. Getting Started with AXIGEN

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

3.2.4. POP3

3.2.5. IMAP

3.2.6. Logging

3.2.7. Reporting

3.2.7.1. Reporting Parameters

3.2.8. WebMail

3.2.9. Storage

3.2.10. FTP Backup Service

3.2.11. RPOP Service

3.3. Connectivity and Threading

3.3.1. Listeners

3.3.2. Rules

3.3.3. Threads

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

4. Mail Server Security

5. User and Domain Configuration

6. Working with the WebMail Module in AXIGEN

7. Using AXIGEN WebMail features in Outlook

8. Working with the Mobile WebMail Interface

9. Administration Tools Overview

10. Configuring AXIGEN using WebAdmin

11. Configuring AXIGEN using CLI

12. Command Line Parameters for AXIGEN

13. RFCs Currently Implemented by AXIGEN

3. Mail Server Architecture

AXIGEN is an integrated service SMTP, IMAP, POP, secured SSL/TLS, WebMail and list server, integrating advanced technologies and messaging services.

Services and Modules

AXIGEN Mail Server is an Internet-based mail server that provides messaging services over the Internet via connections using a Transmission Control Protocol/Internet Protocol (TCP/IP) network. AXIGEN Mail Server sends mail messages using the Simple Mail Transfer Protocol (SMTP). The messages can be retrieved using the Post Office Protocol version 3 (POP3), the Internet Message Access Protocol (IMAP) and WebMail. AXIGEN Mail Storage integrates a proprietary technology that allows storing messages in a special directory structure, guaranteeing an effective, fast mail flow and optimizing space-saving.

Architecture Features

AXIGEN incorporates a multi-threaded engine, which can break server activity into multiple parallel processing threads. This enables system administrators to allocate a certain number of processing threads to specific modules (SMTP incoming / SMTP outgoing / WebMail / IMAP, etc.) Running services can be configured at service, domain and account level.

Most AXIGEN services (SMTP Incoming, SMTP Outgoing, POP, IMAP, WebMail) make use of configurable listeners to define rules for accepting or denying connections.


Administration Tools

The administration tools enable both centralized configuration (WebAdmin and Command Line Interface) and manual configuration (configuration file).

For each service described in the Architecture chapter, configuration options are available in each of these tools (WebAdmin, CLI and the configuration file, axigen.cfg.


Security

AXIGEN incorporates an advanced filtering system and other innovative security tools (Antivirus, AntiSpam, Antispoofing - SPF Authentication, SSL/TLS authentication).

Highly configurable logging and reporting services are also available, and an FTP Backup service allowing you to securely backup and restore your domain and user configuration.


Below you can find a schema illustrating all AXIGEN components.

AXIGEN Mail Server Architecture

See subsections of current page for more details:

Generic Server Configuration
Services and Modules
Connectivity and Threading
Clustering Support
Groupware and collaboration