How to build a SendMail mail server

One ". SendMail Service Package

Sendmail-8.13.8-2.el5.i386.rpm:sendmail The main package for the service, the server side must install the package.

SENDMAIL-CF-8.13.8-2.EL5.I386.RPM:SENDMAIL Macro File Package

Sendmail-devel-8.13.8-2.el5.i386.rpm:sendmail Server Development Tools package

Documentation for the Sendmail-doc-8.13.8-2.el5.i386.rpm:sendmail server

M4-1.4.5-3.EL5.1.I386.RPM: Macro Processing of the worry package

DOVECOT-1.0-1.2.RC15.EL5.I386.RPM: Receive mail packages, install with attention to the order of installation

Two ". SendMail Related Configuration Document

Sendmail.cf:sendmail Core configuration file, located in/ETC/MAIL/SENDMAIL/SENDMAIL.CF

Sendmail.mc:sendmail provides sendmail file templates that are edited and then used M4 tools to import results sendmail.cf complete configuration sendmail core profiles, reduce configuration complexity, located in/etc/mail/ Sendmail.mc

Local-host-name: Defines the domain name and host alias of the incoming and outgoing mail server, located in/etc/mail/local-host-name

Access.db: Used to set the SendMail server for which hosts to forward mail, located in/etc/mail/access.db

Aliases.db: Used to define mailbox aliases, located in/etc/mail/aliases.db

Virtusertable.db: Used to set up a virtual account, located in/etc/mail/virtusertable.db

Three. Mail Feature components

MUA: Message user agent (mail username agent)

MTA: Message transfer agent (mail Transfer agent)

MDA: Mail delivery agent (mail Delivery agent)

Four ". SendMail General Server Configuration

Build SendMail Server process:

(1) Configure SENDMAIL.MC files

(2) using the M4 tool to import SENDMAIL.MC files into sendmail.cf files

(3) Configure Local-host-names files

(4) Establish user account

(5) Restart the service for the configuration to take effect

V. Case analysis and Configuration

Case topology diagram: