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System Administration Guide: Network Services     Oracle Solaris 11 Express 11/10
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Part I Network Services Topics

1.  Network Service (Overview)

2.  Managing Web Cache Servers

3.  Time-Related Services

Part II Accessing Network File Systems Topics

4.  Managing Network File Systems (Overview)

5.  Network File System Administration (Tasks)

6.  Accessing Network File Systems (Reference)

Part III SLP Topics

7.  SLP (Overview)

8.  Planning and Enabling SLP (Tasks)

9.  Administering SLP (Tasks)

10.  Incorporating Legacy Services

11.  SLP (Reference)

Part IV Mail Services Topics

12.  Mail Services (Overview)

What's New With Mail Services

Changes in this Release

Significant Changes in Earlier Releases

Other sendmail Information Sources

Introduction to the Components of Mail Services

Overview of the Software Components

Overview of the Hardware Components

13.  Mail Services (Tasks)

14.  Mail Services (Reference)

Part V Serial Networking Topics

15.  Solaris PPP 4.0 (Overview)

16.  Planning for the PPP Link (Tasks)

17.  Setting Up a Dial-up PPP Link (Tasks)

18.  Setting Up a Leased-Line PPP Link (Tasks)

19.  Setting Up PPP Authentication (Tasks)

20.  Setting Up a PPPoE Tunnel (Tasks)

21.  Fixing Common PPP Problems (Tasks)

22.  Solaris PPP 4.0 (Reference)

23.  Migrating From Asynchronous Solaris PPP to Solaris PPP 4.0 (Tasks)

24.  UUCP (Overview)

25.  Administering UUCP (Tasks)

26.  UUCP (Reference)

Part VI Working With Remote Systems Topics

27.  Working With Remote Systems (Overview)

28.  Administering the FTP Server (Tasks)

29.  Accessing Remote Systems (Tasks)

Part VII Monitoring Network Services Topics

30.  Monitoring Network Performance (Tasks)



Introduction to the Components of Mail Services

Many software and hardware components are required to establish a mail service. The following sections give a quick introduction to these components. These sections also provide some of the terms that are used to describe the components.

The first section, Overview of the Software Components, defines the terms that are used when discussing the software parts of the mail delivery system. The next section, Overview of the Hardware Components, focuses on the functions of the hardware systems in a mail configuration.

Overview of the Software Components

The following table introduces some of the software components of a mail system. Refer to Software Components for a complete description of all of the software components.

.forward files
Files that you can set up in a user's home directory to redirect mail or to send mail to a program automatically
A file on a mail server that is the final destination for email messages
mail addresses
Address that contains the name of the recipient and the system to which a mail message is delivered
mail aliases
An alternate name that is used in a mail address
mail queue
A collection of mail messages that needs to be processed by the mail server
A special mail alias that is used to report problems and to ask questions about the mail service
sendmail configuration file
A file that contains all the information necessary for mail routing

Overview of the Hardware Components

A mail configuration requires three elements, which you can combine on the same system or provide in separate systems.

If users are to communicate with networks outside your domain, you must also add a fourth element, a mail gateway.

Figure 12-1 shows a typical electronic mail configuration, using the three basic mail elements plus a mail gateway.

Figure 12-1 Typical Electronic Mail Configuration

Diagram shows the dependencies between a mail gateway, a mail host, mail servers, mailboxes, clients.

Each element is described in detail in Hardware Components.