Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Conﬁguring a System

Setting Up Mail Services

Chapter 3278

Conﬁguring a System to Receive Electronic Mail

Conﬁguring a system in your workgroup to receive e-mail is a bit more

complicated than conﬁguring it to send e-mail. First you must determine

two things:

1. Which type of networking topography you are going to use (see

Networking Topographies)

2. Where the system ﬁts in to the topography: the electronic mail hub, a

client in a workgroup served by a hub, or a standalone system.

Using that information, begin by selecting the appropriate networking

topography below:

❏ Central Mail Hub Topography (Receiving E-mail)

❏ Gateway Mail Hub Topography (Receiving E-mail)

❏ Fully Distributed (Standalone System) Topography

Central Mail Hub Topography (Receiving E-mail)

With this type of electronic mail system, a single computer serves as the

place where all users in a workgroup send and receive e-mail. To do this,

users either log in to the hub computer, or NFS mount their electronic

mailboxes to local (client) workstations. All outgoing e-mail from the

entire workgroup, even mail sent from a workstation that has NFS

mounted an electronic mailbox, appears to have originated on the hub

computer.

Conﬁguring the hub With Central Mail Hub topography, the

electronic mail hub is the computer that receives e-mail from any

computer outside of the workgroup on behalf of its own users and those

of the client computers that it serves.

Step 1. On the hub computer only, edit the ﬁle /etc/rc.config.d/mailservs:

a. Set the environment variable SENDMAIL_SERVER to 1 to indicate that

this computer is the hub computer:

SENDMAIL_SERVER=1

b. Do not set the environment variable SENDMAIL_SERVER_NAME which

would indicate that another computer serves this one:

SENDMAIL_SERVER_NAME=