Table of Contents

• Title and Copyright Information
• Preface
  • Audience
  • Documentation Accessibility
  • Diversity and Inclusion
• 1 Messaging Server Installation and Configuration Overview
  • Overview of Messaging Server Installed Components
  • Overview of the Messaging Server Installation Procedure
  • Ensuring a Successful Messaging Server Installation
  • Directory Placeholders Used in This Guide
• 2 Planning Your Messaging Server Installation
  • About Messaging Server
  • Determining Your Messaging Server Network Infrastructure Needs
    • Understanding Your Existing Network
    • Understanding Network Infrastructure Components
      • Routers and Switches
      • Firewall Access Control
      • Load Balancers
      • Cassandra Storage
      • Classic Storage
      • Domain Name System (DNS)
    • Planning Your Network Infrastructure Layout
      • Demilitarized Zone (DMZ)
      • Intranet
      • Internal Network
      • Firewall Configuration
      • Mobile Users
  • Messaging Server Front-End and Back-End Components
  • Planning Your Messaging Server Installation
    • Planning for Multiple Messaging Server Hosts
    • Planning for Virus Scanning
    • Planning a Messaging Server Topology
    • Planning a Messaging Server Sizing Strategy
  • System Deployment Planning
    • Planning for High Availability
    • Using Load Balancing
    • Planning Backup Strategies
  • Messaging Server Logical Architecture
  • About Installing a Secure System
• 3 Developing a Messaging Server Architecture
  • Understanding the Two-tiered Messaging Architecture
    • Two-tiered Architecture: Messaging Data Flow
  • Understanding Horizontal and Vertical Scalability in Messaging Server
    • Planning for Horizontal Scalability
      • Spreading Your Messaging User Base Across Several Servers
      • Spreading Your Messaging Resources Across Redundant Components
    • Planning for Vertical Scalability
  • Planning for a Highly Available Messaging Server Deployment
• 4 Planning a Messaging Server Sizing Strategy
  • Collecting Messaging Server Sizing Data
    • Determining Messaging Peak Volume
    • Creating Your Messaging Usage Profile
      • Additional Questions
    • Defining Your Messaging User Base
      • Lightweight POP
      • Heavyweight POP
      • Lightweight IMAP
      • Mediumweight IMAP
      • Mediumweight Convergence
  • Using a Messaging Server Load Simulator
    • To Use a Load Simulator
  • Assessing Your Messaging Server System Performance
    • Messaging Server Memory Utilization
    • Messaging Server Disk Throughput
    • Messaging Server Disk Capacity
    • Disk Sizing for MTA Message Queues
      • Message Queue Availability
      • Message Queue Available Disk
    • Messaging Server Network Throughput
    • Messaging Server CPU Resources
  • Performance Tuning Considerations for a Messaging Server Architecture
    • Message Store Performance Considerations
      • Messaging Server Directories
      • MTA Queue Directories
      • Log Files Directory
      • mboxlist Directory
      • Multiple Store Partitions
      • Message Store Processor Scalability
      • Setting the Mailbox Database Cache Size
    • To Adjust the Mailbox Database Cache Size
    • To Monitor the Mailbox Database Cache Size
    • Setting Disk Stripe Width
    • MTA Performance Considerations
      • MTA and Raid Trade-offs
      • MTA and Processor Scalability
      • MTA and High Availability
    • MMP Performance Considerations
      • MMP and Webmail Server
    • File System Performance Considerations
    • CPU Considerations
    • Performance Tuning Realtime BlockLists (RBL) Lookups
      • Performance Discussion
      • Hints and Tips
  • Developing Messaging Server Architectural Strategies
    • Two-tiered Messaging Server Architecture
      • To Size the Message Store
      • To Size Inbound and Outbound MTAs
      • To Size Your MMP
    • Single-tiered Messaging Server Architecture
      • To Size a Single-tiered Messaging Server Architecture
  • Analyzing Your Messaging Server Requirements
    • Determining Messaging Server Project Goals
      • Planning for Growth
      • Understanding Total Cost of Ownership
  • Identifying Messaging Server Deployment Goals
    • Defining Business Requirements
      • Operational Requirements
      • Culture and Politics
    • Defining Technical Requirements
      • Supporting Existing Usage Patterns
      • Site Distribution
      • Network Requirements
      • Existing Infrastructure
      • Support Personnel
    • Defining Financial Requirements
    • Defining Service Level Agreements (SLAs)
• 5 Designing a Messaging Server Topology
  • Identifying Your Geographic Needs
  • Designing a Messaging Topology
    • Central Topology
    • Distributed Topology
    • Hybrid Topology
    • Service Provider Topology
  • Understanding Messaging Topology Elements
    • Messaging Topology Components
    • Using MTAs to Protect Your Messaging System
    • Using MMPs
    • Using Gateways
  • Creating a Messaging Topology Example
    • Step 1: Identifying Messaging Goals
    • Step 2: Choosing a Topology Strategy
    • Step 3: Planning the Topology Elements
  • Using Logical Service Names
• 6 Using a Configuration Management Tool with Messaging Server
  • About Using a Configuration Management Tool
  • Creating the Environment to Use a Configuration Management Tool
  • Considerations When Upgrading Messaging Server
  • Considerations for Security
    • Considerations for Directory Credentials
    • Considerations for Authentication to Local-only Services
    • Considerations for Passwords
    • Considerations for ENS Authentication
    • Considerations for PORT_ACCCESS Mapping
    • Considerations for Firewalls
    • Considerations for SMTP Client IP Addresses
• 7 Messaging Server System Requirements
  • Software Requirements
    • Supported Operating Systems
    • Supported High Availability Software
    • Required Software
  • File System Recommendations
  • Hardware Requirements
  • Time Synchronization Requirements
  • Information Requirements
    • Messaging Server Information
    • LDAP Information
    • Postmaster, Administrator, and IP Relay Information
    • Directory Server Information
  • Front-End / Back-End Compatibility Matrix for Messaging Server Versions
  • Software Requirements for Elasticsearch
    • Required Software
  • Modifying Elasticsearch Configuration
• 8 Messaging Server Pre-Installation Tasks
  • Creating a UNIX System User and Group
    • To Create a UNIX System User and Group
  • Checking the DNS Configuration
    • To Check the DNS Configuration
  • Checking the Number of File Descriptors
    • To Check and Change the Number of File Descriptors
  • Installing Directory Server
• 9 Installing Messaging Server
  • About Messaging Server Components
  • Installation Assumptions
  • About Unified Configuration
  • Prerequisites for Installing Messaging Server
    • Before Installing Messaging Server
    • Preparing Directory Server
      • Downloading the comm_dssetup.pl Script
      • Running the comm_dssetup.pl Script in Interactive Mode
    • Configuring Messaging Server Against a Directory Server Replica
  • Installing Messaging Server
    • Downloading the Messaging Server Software
    • Installing the Messaging Server Software
  • Installing Messaging Server on Solaris Zones
    • Installing on Solaris OS Zones: Best Practices
    • Installing into a Non-Global Whole Root Zone
    • Installing into a Non-Global Sparse Root Zone
  • Next Steps
• 10 Configuring Messaging Server for High Availability
  • Designing for Service Availability
    • High Availability Solutions Overview
    • Automatic System Reconfiguration (ASR)
    • Directory Server and High Availability
    • Messaging Server and High Availability
    • Using Enabling Techniques and Technologies
      • Using Load Balancers
      • Using Directory Proxy Server
      • Using Replica Role Promotion
    • Locating High Availability Product Reference Information
    • Understanding Remote Site Failover
      • Questions for Remote Site Failover
  • Supported Versions of High-Availability Software in Messaging Server
  • About High Availability Models
    • Asymmetric
    • Symmetric
    • N+1 (N Over 1)
  • Oracle Clusterware Installation and Configuration
    • To Install Oracle Clusterware
    • To Configure Messaging Server to Use with Oracle Clusterware
    • To Unconfigure Oracle Clusterware
  • Using the useconfig Utility
• 11 Configuring Messaging Server
  • Designing for Service Availability
  • High-level Overview of Configuring Messaging Server
  • Configuring Messaging Server
    • Running the Messaging Server Initial Configuration Script
    • Configuring the Message Transfer Agent (MTA)
    • Configuring the Messaging Multiplexor (MMP)
    • Configuring the Webmail Server
      • Configuring Webmail Server Examples
  • Configuring Oracle Communications Messaging Server Individual Ports
  • Configuring an Oracle Communications Messaging Server Host to be Multi-Homed
    • To Change the IP Address for Each Installation
    • To Configure the Host to be Multi-Homed
    • To Configure Multiple Addresses Per Interface
    • Multi-Home Example
• 12 Messaging Server Post-Installation Tasks
  • Installing Messaging Server Provisioning Tools
    • Understanding Messaging Server Schema Choices
      • LDAP Schema 1 and Messaging Server
      • LDAP Schema 2 (Native Mode) and Messaging Server
      • LDAP Schema 2 Compatibility Mode and Messaging Server
    • Understanding Messaging Server Provisioning Tools
      • LDAP Provisioning Tools for Messaging Server
      • Comparing Messaging Server Provisioning Tool Options
  • Configuring SMTP Relay Blocking
  • Using Service Management Framework with Messaging Server
  • Enabling Startup After a Reboot
    • To Enable Messaging Server After a Reboot on Solaris
    • To Enable Messaging Server After a Reboot on Linux
  • Performance and Tuning
  • Post-Installation Directory Layout
  • Post-Installation Port Numbers
  • JMQ Notification
  • Configuring Certificate Based Authentication
• 13 Upgrading Messaging Server
  • About Upgrading to Messaging Server 8.1.0
  • Upgrade Requirements for Messaging Server
  • About Messaging Server Unified Configuration
  • Upgrading Messaging Server Overview
    • Technical Features Supporting Messaging Server Upgrade
  • Messaging Server Upgrade Strategies
  • Using the Coexistent Upgrade on Messaging Server
    • Specific Steps for Upgrading Messaging Server Using the Coexistence Model
  • Using the In-Place Upgrade on Messaging Server
    • Steps for Using In-Place Upgrade on Messaging Server on Linux
    • Steps for Using In-Place Upgrade on Messaging Server on Solaris
  • Downgrading from Messaging Server 8.1.0
    • Before you Upgrade to Messaging Server 8.1.0
    • Downgrading Using a ZFS Snapshot (Solaris Only)
      • High Level Overview
      • To Downgrade Using a ZFS Snapshot
    • Downgrading from Messaging Server 8.1.0 Without Using a ZFS Snapshot
    • Downgrading MTA, MMP, or Webmail Hosts
  • Messaging Server 8.1.0 Upgrade in an HA Environment
    • Upgrading to Messaging Server 8.1.0 in an HA Environment
      • To Do an In-place Upgrade to Messaging Server 8.1.0 in an HA Environment
• 14 Uninstalling Messaging Server
  • About Uninstalling Messaging Server
  • Uninstalling Messaging Server
    • Uninstalling Messaging Server Components
• 15 Installing Patches
  • About Patching Messaging Server
  • Planning Your Patch Installation
  • Installing a Patch
• A comm_dssetup.pl Reference
  • Before Running the comm_dssetup.pl Script
    • About the comm_dssetup.pl Script
    • Directory Server Considerations for the comm_dssetup.pl Script
    • Information Needed to Run the comm_dssetup.pl Script
    • About the Directory Server Root Path Name and Instance
    • About the comm_dssetup.pl Script Schema Choices
      • About LDAP Schema 2
      • About LDAP Schema 1
      • About LDAP Schema 2 Compatibility Mode
    • Attribute Indexes Created by the comm_dssetup.pl Script
  • Running the comm_dssetup.pl Script
    • Running the comm_dssetup.pl Script in Silent Mode
    • Silent Mode Options