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

3.2.4. 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

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3.4.1.4.4. Mapping Setup

User maps are used to provide routing information to the proxy services running on a cluster node. More than one user map can be defined and each can be configured separately.

A user map can have one of the three following types:
  • Local File - Uses a specified path to load a local file containing the routing information.
  • LDAP Password - Connects to an LDAP server using one of the defined connectors.
  • LDAP Bind - Uses bound connections to an LDAP server requiring authentication such as an Active Directory tree.
Once the type of the mapping is set, the configuration details must be solved. For the local file mapping to work, a local file with mapping information must exist. This file must have the correct permissions set for AXIGEN to access it and retrieve the information.

With the LDAP mapping type, an LDAP connector must be selected from the list of defined connectors. If no connector has been defined, a new one must be set up so AXIGEN can retrieve the mapping information from the LDAP server.

WARNING: Each user map can use one LDAP connector at a time. Therefore, only one base DN and only one search pattern can be set to retrieve the information from the directory. While defining the LDAP connector a search pattern, that can return all user entries defined, should be used with caution so they can all access the system. If the pattern cannot match all entries, the ones excluded will never be matched by the mapping system even if they are defined in the LDAP directory.

For additional information on this topic read the User Maps chapter.
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