Chapter 1. 系统简介
本章介绍了系统的组成。
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1.1 系统结构
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1.2 软件介绍
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Chapter 2. 系统安装
安装之前：因用户数据都保存在/var目录下，因此安装FreeBSD时/var的空间应尽量大。FreeBSD的版本为4.9，按最小化安装，软件包只安装cvsup，安装结束后用cvsup更新ports树。在文档中假设服务器的ip地址为192.168.204.38，域名为test.com，主机名为mail.test.com。
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2.1 安装perl
版本为5.8.5，FreeBSD缺省安装的perl版本无法支持目前的amavisd-new。
mail# cd /usr/ports/lang/perl5.8

mail# make install clean

让新版本的perl成为系统的缺省
mail# /usr/local/bin/use.perl port

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2.2 安装MySQL
版本为4.0.20，因目前的pam_mysql版本不支持4.1所以安装MySQL40。
mail# cd /usr/ports/databases/mysql40-server
mail# make install clean


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2.3 安装Apache
版本为1.3.31_4。
mail# cd /usr/ports/www/apache2
mail# make install clean

编辑/etc/rc.conf，加入
Apache2_enable="YES"

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2.4 安装PHP
版本为4.3.10。
mail# cd /usr/ports/lang/php4

mail# make install clean

安装需要的PHP扩展模块
mail# cd /usr/ports/lang/php4-extensions
mail# make install clean

注：gettext需选中

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2.5 安装openssl
mail# cd /usr/ports/security/openssl

mail# make install clean

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2.6 安装phpMyAdmin
mail# cd /usr/ports/databases/phpmyadmin
mail# make install clean

编辑/usr/local/etc/apache/httpd.conf，加入
Alias /phpMyAdmin/ "/usr/local/www/phpMyAdmin/"


Options Indexes FollowSymlinks
Allowoverride AuthConfig
Order allow,deny
Allow from all


编辑编辑/usr/local/www/phpMyAdmin/.htaccess
authname "MySQL Admin"
authtype basic
authuserfile /etc/htpasswd
require user admin

运行以下命令生成可访问phpMyadmin的用户：
mail# /usr/local/bin/htpasswd -c /etc/htpasswd admin

修改/usr/local/www/phpMyAdmin/config.inc.php
$cfg['PmaAbsoluteUri'] = 'http://192.168.9.33/phpMyAdmin/';

重启服务器
在浏览器输入http://192.168. 9.33/phpMyAdmin/，修改mysql数据库里user表里的root用户的密码为admin123。
重启MySQL，再编辑/usr/local/www/phpMyAdmin/config.inc.php
$cfg['Servers'][$i]['password'] = 'admin123';

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2.7 通过phpMyadmin设置数据库
建立两个数据库用户
#======================postfix==================================

INSERT INTO user (host,user,password) VALUES('localhost','postfix','');
update user set password=password('admin123') where User='postfix';
FLUSH PRIVILEGES;
GRANT ALL ON mail.* TO postfix@localhost IDENTIFIED BY "admin123";
#======================courier==================================
INSERT INTO user (host,user,password) VALUES ('localhost','courier','');
update user set password=password('admin123') where User='courier';
FLUSH PRIVILEGES;
GRANT select,insert,update on mail.* TO courier;


建立数据库
#=======================MAIL.SQL=================================

#Create mail database

CREATE DATABASE mail;
use mail;

#Create the aliases table

CREATE TABLE aliases (

alias varchar(255) NOT NULL default '',
rcpt varchar(255) default NULL,
PRIMARY KEY (alias)
) TYPE=MyISAM;

#Create the transport table

CREATE TABLE transport (

domain char(128) NOT NULL default '',
transport char(128) NOT NULL default '',
UNIQUE KEY domain (domain)
) TYPE=MyISAM;

#Create the virtua_users table

CREATE TABLE virtual_users (

unique_id int(32) unsigned NOT NULL auto_increment,
id char(128) NOT NULL default '',
password char(128) default NULL,
uid int(10) unsigned default '125',
gid int(10) unsigned default '125',
home char(255) default NULL,

maildir char(255) default NULL,
date_add date default NULL,
time_add time default NULL,
domain char(128) default NULL,
name char(255) default NULL,
imapok tinyint(3) unsigned default '1',

###缺省邮箱大小20M
quota char(255) default '20971520',
nickname varchar(10) default NULL,
realname varchar(10) default NULL,
office varchar(20) default NULL,
PRIMARY KEY (id),

KEY unique_id (unique_id)
) TYPE=MyISAM;

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2.8 安装cyrus-sasl和cyrus-sasl2-saslauthd
mail# cd /usr/ports/security/cyrus-sasl2-saslauthd
mail# make install clean

编辑/etc/rc.conf，加入
saslauthd_enable="YES"

建立一个目录连接
mail# ln -s /usr/local/lib/sasl2 /usr/lib/sasl2


配置sasl的lib库:在/etc/defaults/rc.conf文件里的ldconfig_paths="/usr/local/lib后面加上/usr/local/lib/sasl2"
运行:
mail# echo pwcheck_method:saslauthd > /usr/lib/sasl2/smtpd.conf

编辑/usr/local/etc/rc.d/saslauthd.sh
command="$/sbin/$"

改成：
command="$/sbin/$ -r"

重启服务器
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2.9 安装pam_mysql
mail# cd /usr/ports/security/pam-mysql
mail# make install clean
mail# cp /usr/local/lib/pam_mysql.so /usr/lib/

配置pam.conf调用mysql支持sasl认证。编辑/etc/pam.conf(将pop3 和imap的前面加上#)添加下列代码：
smtp auth sufficient pam_mysql.so user=postfix passwd=admin123 host=localhost db=mail table=virtual_users usercolumn=id passwdcolumn=password crypt=1
注：以上为一行。
smtp account required pam_mysql.so user=postfix passwd=admin123 host=localhost db=mail table=virtual_users usercolumn=id passwdcolumn=password crypt=1
注：以上为一行。

注：用tab键分隔，不是用空格。密码使用crypt加密，如果使用明文密码cyrpt=0,如果
使用password()加密crypt=2

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2.10 安装postfix
停止sendmail
mail# killall sendmail
mail# mv /usr/bin/newaliases /usr/bin/newaliases.OFF

mail# mv /usr/bin/mailq /usr/bin/mailq.OFF
mail# mv /usr/sbin/sendmail /usr/sbin/sendmail.OFF
mail# mv /etc/rc.sendmail /etc/sendmail.OFF

开始安装postfix
mail# cd /usr/ports/mail/postfix

mail# make install clean

安装中选中SASL2、MySQL，及回答以下的问题。
You need user "postfix" added to group "mail".
Would you like me to add it [y]? y
Would you like to activate Postfix in /etc/mail/mailer.conf [n]? n

安装完进行一些设置：
mail# cd /usr/local/etc/rc.d
mail# ln -s /usr/local/sbin/postfix postfix.sh

mail# ln -s /usr/local/sbin/sendmail /usr/sbin/sendmail

mail# echo ‘postfix: root’ >> /etc/aliases
mail# /usr/local/bin/newaliases
mail# chown postfix:postfix /etc/opiekeys

编辑/etc/rc.conf
sendmail_enable="YES"
sendmail_flags="-bd"
sendmail_outbound_enable="NO"
sendmail_submit_enable="NO"
sendmail_msp_queue_enable="NO"
编辑//etc/periodic.conf
daily_clean_hoststat_enable="NO"
daily_status_mail_rejects_enable="NO"
daily_status_include_submit_mailq="NO"
daily_submit_queuerun="NO"
修改/usr/local/etc/postfix/main.cf，在文件最后加入以下内容
#======= BASE ==============
myhostname = mail.test.com
mydomain = test.com
home_mailbox = Maildir/
mydestination = $myhostname, $mydomain, $transport_maps
local_recipient_maps =
mailbox_command= /usr/local/bin/deliverquota -w 90 ~/Maildir
command_directory = /usr/local/sbin
#======= MYSQL =============
transport_maps = mysql:/usr/local/etc/postfix/transport.cf
virtual_gid_maps = mysql:/usr/local/etc/postfix/gids.cf
virtual_mailbox_base = /var/mail
virtual_mailbox_maps = mysql:/usr/local/etc/postfix/mysql_virtual.cf
virtual_maps = mysql:/usr/local/etc/postfix/mysql.aliases.cf
virtual_uid_maps = mysql:/usr/local/etc/postfix/uids.cf
#======= Quota ============
message_size_limit = 4194304 //限制每次发邮件的大小4MB
virtual_mailbox_limit_inbox = no
virtual_mailbox_limit_maps = mysql:/usr/local/etc/postfix/mailboxsize-mysql.cf
virtual_mailbox_limit_override = yes
virtual_maildir_extended = yes
virtual_create_maildirsize = yes
virtual_mailbox_limit = 20971520 //总邮箱的大小20MB
#====== SASL ================
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated permit_auth_destination reject
#smtpd_sasl_local_domain = $mydomain
smtpd_client_restrictions = permit_sasl_authenticated

确认/usr/local/etc/postfix/master.cf的配置有如下内容
virtual unix - n n - - virtual

编辑/usr/local/etc/posftix/transport.cf
user = postfix
password = admin123
dbname = mail
table = transport
select_field = transport
where_field = domain
hosts = localhost

编辑/usr/local/etc/postfix/gids.cf
user = postfix
password= admin123
dbname = mail
table = virtual_users
select_field = gid
where_field = id
hosts = localhost

编辑/usr/local/etc/postfix/uids.cf
user = postfix
password= admin123
dbname = mail
table = virtual_users
select_field = uid
where_field = id
hosts = localhost

编辑/usr/local/etc/posftix/mysql_virtual.cf
user = postfix
password= admin123
dbname = mail
table = virtual_users
select_field = maildir
where_field = id
hosts = localhost

编辑/usr/local/etc/postfix/mysql.aliases.cf
user = postfix
password= admin123
dbname = mail
table = aliases
select_field = rcpt
where_field = alias
hosts = localhost

编辑/etc/postfix/mailboxsize-mysql.cf
user = postfix
password = admin123
dbname = mail
table = virtual_users
select_field = quota
where_field = id
hosts = localhost

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2.11 安装expect
mail# cd /usr/ports/lang/expect

mail# make install clean

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2.12 安装Courier-imap
由于courier-imap 从 4版本开始，把 courier-authlib 独立出来了，需要先安装 courier-authlib. 具体步骤：
mail# cd courier-authlib
mail# make WITH_MYSQL=yes
mail# make install
mail# cd /usr/ports/mail/courier-imap
mail# make WITHOUT_OPENSSL= yes WITH_MYSQL= yes install clean

mail# cd /usr/local/etc/rc.d
mail# mv courier-imap-imapd-ssl.sh.sample courier-imap-imapd-ssl.sh
mail# mv courier-imap-imapd.sh.sample courier-imap-imapd.sh
mail# mv courier-imap-pop3d-ssl.sh.sample courier-imap-pop3d-ssl.sh

mail# mv courier-imap-pop3d.sh.sample courier-imap-pop3d.sh
mail# cd /usr/local/etc/authlih
mail# cd /usr/local/etc/courier-imap
mail# cp authdaemonrc.dist authdaemonrc
mail# cp authmysqlrc.dist authmysqlrc
mail# cd /usr/local/etc/courier-imap
mail# cp imapd-ssl.dist imapd-ssl
mail# cp imapd.cnf.dist imapd.cnf
mail# cp imapd.dist imapd
mail# cp pop3d-ssl.dist pop3d-ssl
mail# cp pop3d.cnf.dist pop3d.cnf
mail# cp pop3d.dist pop3d

编辑修改/usr/local/etc/courier-imap/authmysqlrc 示例：authmysqlrc
##VERSION: $Id: install.sgml,v 1.1 2004/11/01 14:47:56 wt Exp $
#
# Copyright 2000-2004 Double Precision, Inc. See COPYING for
# distribution information.
#
# Do not alter lines that begin with ##, they are used when upgrading
# this configuration.
#
# authmysqlrc created from authmysqlrc.dist by sysconftool
#
# DO NOT INSTALL THIS FILE with world read permissions. This file
# might contain the MySQL admin password!
#
# Each line in this file must follow the following format:
#
# field[spaces|tabs]value
#
# That is, the name of the field, followed by spaces or tabs, followed by
# field value. Trailing spaces are prohibited.


##NAME: LOCATION:0
#
# The server name, userid, and password used to log in.

MYSQL_SERVER localhost
MYSQL_USERNAME courier
MYSQL_PASSWORD admin123

##NAME: MYSQL_SOCKET:0
#
# MYSQL_SOCKET can be used with MySQL version 3.22 or later, it specifies the
# filesystem pipe used for the connection
#
# MYSQL_SOCKET /var/mysql/mysql.sock

##NAME: MYSQL_PORT:0
#
# MYSQL_PORT can be used with MySQL version 3.22 or later to specify a port to
# connect to.

MYSQL_PORT 3306

##NAME: MYSQL_OPT:0
#
# Leave MYSQL_OPT as 0, unless you know what you're doing.

MYSQL_OPT 0

##NAME: MYSQL_DATABASE:0
#
# The name of the MySQL database we will open:

MYSQL_DATABASE mail

##NAME: MYSQL_USER_TABLE:0
#
# The name of the table containing your user data. See README.authmysqlrc
# for the required fields in this table.

MYSQL_USER_TABLE virtual_users

##NAME: MYSQL_CRYPT_PWFIELD:0
#
# Either MYSQL_CRYPT_PWFIELD or MYSQL_CLEAR_PWFIELD must be defined. Both
# are OK too. crypted passwords go into MYSQL_CRYPT_PWFIELD, cleartext
# passwords go into MYSQL_CLEAR_PWFIELD. Cleartext passwords allow
# CRAM-MD5 authentication to be implemented.

MYSQL_CRYPT_PWFIELD password

##NAME: MYSQL_CLEAR_PWFIELD:0
#
#
# MYSQL_CLEAR_PWFIELD clear

##NAME: MYSQL_DEFAULT_DOMAIN:0
#
# If DEFAULT_DOMAIN is defined, and someone tries to log in as 'user',
# we will look up 'user@DEFAULT_DOMAIN' instead.
#
#
# DEFAULT_DOMAIN example.com

##NAME: MYSQL_UID_FIELD:0
#
# Other fields in the mysql table:
#
# MYSQL_UID_FIELD - contains the numerical userid of the account
#
MYSQL_UID_FIELD uid

##NAME: MYSQL_GID_FIELD:0
#
# Numerical groupid of the account

MYSQL_GID_FIELD gid

##NAME: MYSQL_LOGIN_FIELD:0
#
# The login id, default is id. Basically the query is:
#
# SELECT MYSQL_UID_FIELD, MYSQL_GID_FIELD, ... WHERE id='loginid'
#

MYSQL_LOGIN_FIELD id

##NAME: MYSQL_HOME_FIELD:0
#

MYSQL_HOME_FIELD home

##NAME: MYSQL_NAME_FIELD:0
#
# The user's name (optional)

MYSQL_NAME_FIELD name

##NAME: MYSQL_MAILDIR_FIELD:0
#
# This is an optional field, and can be used to specify an arbitrary
# location of the maildir for the account, which normally defaults to
# $HOME/Maildir (where $HOME is read from MYSQL_HOME_FIELD).
#
# You still need to provide a MYSQL_HOME_FIELD, even if you uncomment this
# out.
#
MYSQL_MAILDIR_FIELD maildir

##NAME: MYSQL_DEFAULTDELIVERY:0
#
# Courier mail server only: optional field specifies custom mail delivery
# instructions for this account (if defined) -- essentially overrides
# DEFAULTDELIVERY from $/courierd
#
# MYSQL_DEFAULTDELIVERY defaultdelivery

##NAME: MYSQL_QUOTA_FIELD:0
#
# Define MYSQL_QUOTA_FIELD to be the name of the field that can optionally
# specify a maildir quota. See README.maildirquota for more information
#
MYSQL_QUOTA_FIELD quota

##NAME: MYSQL_AUXOPTIONS:0
#
# Auxiliary options. The MYSQL_AUXOPTIONS field should be a char field that
# contains a single string consisting of comma-separated "ATTRIBUTE=NAME"
# pairs. These names are additional attributes that define various per-account
# "options", as given in INSTALL's description of the "Account OPTIONS"
# setting.
#
# MYSQL_AUXOPTIONS_FIELD auxoptions
#
# You might want to try something like this, if you'd like to use a bunch
# of individual fields, instead of a single text blob:
#
# MYSQL_AUXOPTIONS_FIELD CONCAT("disableimap=",disableimap,",
#disablepop3=",disablepop3,",di
#sablewebmail=",disablewebmail,",sharedgroup=",sharedgroup)
#
# This will let you define fields called "disableimap", etc, with the end result
# being something that the OPTIONS parser understands.


##NAME: MYSQL_WHERE_CLAUSE:0
#
# This is optional, MYSQL_WHERE_CLAUSE can be basically set to an arbitrary
# fixed string that is appended to the WHERE clause of our query
#
# MYSQL_WHERE_CLAUSE server='mailhost.example.com'


##NAME: MYSQL_SELECT_CLAUSE:0
#
# (EXPERIMENTAL)
# This is optional, MYSQL_SELECT_CLAUSE can be set when you have a database,
# which is structuraly different from proposed. The fixed string will
# be used to do a SELECT operation on database, which should return fields
# in order specified bellow:
#
# username, cryptpw, clearpw, uid, gid, home, maildir, quota, fullname, options
#
# The username field should include the domain (see example below).
#
# Enabling this option causes ignorance of any other field-related
# options, excluding default domain.
#
# There are two variables, which you can use. Substitution will be made
# for them, so you can put entered username (local part) and domain name
# in the right place of your query. These variables are:
# $(local_part), $(domain), $(service)
#
# If a $(domain) is empty (not given by the remote user) the default domain
# name is used in its place.
#
# $(service) will expand out to the service being authenticated: imap, imaps,
# pop3 or pop3s. Courier mail server only: service will also expand out to
# "courier", when searching for local mail account's location. In this case,
# if the "maildir" field is not empty it will be used in place of
# DEFAULTDELIVERY. Courier mail server will also use esmtp when doing
# authenticated ESMTP.
#
# This example is a little bit modified adaptation of vmail-sql
# database scheme:
#
# MYSQL_SELECT_CLAUSE SELECT CONCAT(popbox.local_part, '@', popbox.domain_name),
\
# CONCAT('', popbox.password_hash), \
# popbox.clearpw, \
# domain.uid, \
# domain.gid, \
# CONCAT(domain.path, '/', popbox.mbox_name), \
# '', \
# domain.quota, \
# '', \
# CONCAT("disableimap=",disableimap,",disablepop3=", \
# disablepop3,",disablewebmail=",disablewebmail, \
# ",sharedgroup=",sharedgroup) \
# FROM popbox, domain \
# WHERE popbox.local_part = '$(local_part)' \
# AND popbox.domain_name = '$(domain)' \
# AND popbox.domain_name = domain.domain_name


##NAME: MYSQL_ENUMERATE_CLAUSE:0
#
#
# Optional custom SQL query used to enumerate accounts for authenumerate,
# in order to compile a list of accounts for shared folders. The query
# should return the following fields: name, uid, gid, homedir, maildir
#
# Example:
# MYSQL_ENUMERATE_CLAUSE SELECT CONCAT(popbox.local_part, '@',
#popbox.domain_name),
\
# domain.uid, \
# domain.gid, \
# CONCAT(domain.path, '/', popbox.mbox_name), \
# '' \
# FROM popbox, domain \
# WHERE popbox.local_part = '$(local_part)' \
# AND popbox.domain_name = '$(domain)' \
# AND popbox.domain_name = domain.domain_name



##NAME: MYSQL_CHPASS_CLAUSE:0
#
# (EXPERIMENTAL)
# This is optional, MYSQL_CHPASS_CLAUSE can be set when you have a database,
# which is structuraly different from proposed. The fixed string will
# be used to do an UPDATE operation on database. In other words, it is
# used, when changing password.
#
# There are four variables, which you can use. Substitution will be made
# for them, so you can put entered username (local part) and domain name
# in the right place of your query. There variables are:
# $(local_part) , $(domain) , $(newpass) , $(newpass_crypt)
#
# If a $(domain) is empty (not given by the remote user) the default domain
# name is used in its place.
# $(newpass) contains plain password
# $(newpass_crypt) contains its crypted form
#
# MYSQL_CHPASS_CLAUSE UPDATE popbox \
# SET clearpw='$(newpass)', \
# password_hash='$(newpass_crypt)' \
# WHERE local_part='$(local_part)' \
# AND domain_name='$(domain)'
#

重启服务器
________________________________________
Chapter 3. 设置第一个用户并测试
本章介绍如何开通用户，并且测试系统是否正常。
________________________________________
3.1 设置第一个用户
设置第一个用户
mail# mysql

mysql> use mail;
mysql> show tables;
+----------------+
| Tables_in_mail |
+----------------+
| aliases |
| transport |
| virtual_users |
+----------------+
mysql> desc aliases;
+-------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------------+------+-----+---------+-------+
| alias | varchar(255) | | PRI | | |
| rcpt | varchar(255) | YES | | NULL | |
+-------+--------------+------+-----+---------+-------+
mysql> insert aliases values('postmaster@test.com','webmaster@test.com');

mysql> select * from aliases;
+--------------------------+--------------------+
| alias | rcpt |
+--------------------------+--------------------+
| postmaster@test.com | webmaster@test.com |
+--------------------------+--------------------+
mysql> desc transport;
+-----------+-----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+-----------+------+-----+---------+-------+
| domain | char(128) | | PRI | | |
| transport | char(128) | | | | |
+-----------+-----------+------+-----+---------+-------+
mysql> insert transport values('test.com','virtual:');
mysql> select * from transport;

+---------------+-----------+
| domain | transport |
+---------------+-----------+
| test.com | virtual: |
+---------------+-----------+
mysql> desc virtual_users;
+-----------+---------------------+------+-----+----------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------+---------------------+------+-----+----------+----------------+
| unique_id | int(32) unsigned | | MUL | NULL | auto_increment |
| id | char(128) | | PRI | | |
| password | char(128) | YES | | NULL | |
| uid | int(10) unsigned | YES | | 104 | |
| gid | int(10) unsigned | YES | | 104 | |
| home | char(255) | YES | | NULL | |
| maildir | char(255) | YES | | NULL | |
| date_add | date | YES | | NULL | |
| time_add | time | YES | | NULL | |
| domain | char(128) | YES | | NULL | |
| name | char(255) | YES | | NULL | |
| imapok | tinyint(3) unsigned | YES | | 1 | |
| quota | char(255) | YES | | 10485760 | |
+-----------+---------------------+------+-----+----------+----------------+
mysql> INSERT INTO virtual_users
mysql> (id,home,password,maildir,date_add,time_add,domain,name)
mysql> VALUES ('webmaster@test.com','/var/mail/',encrypt('admin123'),

mysql> 'test.com/webmaster/Maildir/','2004-08-08','16:28:24','test.com','webmaster');
mysql> quit

设置用户的目录与权限：
mail# mkdir -p /var/mail/test.com/webmaster
mail# /usr/local/bin/maildirmake /var/mail/test.com/webmaster/Maildir

mail# chmod -R 777 /var/mail/test.com/
mail# chown -R postfix:postfix /var/mail/test.com

至此用户设置完毕，这里只使用一个域名，同理可以设置多个域名。
________________________________________
3.2 用户登录测试
用户登录测试
安装p5-MIME-Base64
mail# cd /usr/ports/converters/p5-MIME-Base64/

mail# make install clean

通过p5-MIME-Base64来取得用户名和密码的base64编码
mail# perl -MMIME::Base64 -e 'print encode_base64("webmaster\@test.com");'
d2VibWFzdGVyQG1za2Uub3Jn
mail# perl -MMIME::Base64 -e 'print encode_base64("admin123");'
bHUwOTIx

发送邮件：
mail# telnet 127.0.0.1 25

Trying 127.0.0.1...
Connected to 0.
Escape character is '^]'.
220 mail.test.com ESMTP Postfix
ehlo mail
250-mail.test.com
250-PIPELINING
250-SIZE 4194304
250-VRFY
250-ETRN
250-AUTH NTLM LOGIN PLAIN OTP
250-AUTH=NTLM LOGIN PLAIN OTP
250 8BITMIME
auth login
334 VXNlcm5hbWU6
d2VibWFzdGVyQG1za2Uub3Jn //此为用户名id：webmaster@test.com
334 UGFzc3dvcmQ6
bHUwOTIx //此为用户密码password：admin123
235 Authentication successful
MAIL FROM:webmaster@test.com //告诉服务器发件人的Email地址
250 Ok
RCPT TO:webmaster@test.com //告诉服务器收件人的地址
250 OK

DATA //告诉服务器开始写信
354 End data with .
SUBJECT:test //subject后面填写的是邮件的主题
test
. //换行后输入.后按回车,表示信件内容书写完毕
250 Ok: queued as 58DC71D5

quit //发送信件，结束对话，退出SMTP服务器
221 Bye
Connection closed by foreign host

收取邮件：
mail# telnet 127.0.0.1 110
Trying 127.0.0.1...
Connected to 0
Escape character is '^]'
+OK Hello there
user webmaster@test.com
+OK Password required
pass admin123
+OK logged in
list

+OK POP3 clients that break here, they violate STD53
1 2217
.
retr 1 //返回第一封信的全部内容
+OK 2217 octets follow.
Return-Path: <webmaster@test.com>
X-Original-To: webmaster@test.com
Delivered-To: webmaster@test.com
Received: from mail (localhost.test.com [127.0.0.1])
by mail.test.com (Postfix) with ESMTP id 58DC71D5
for <webmaster@test.com>; Mon, 9 Aug 2004 21:11:20 +0800 (CST)
SUBJECT:test
Message-Id: <20040809131120.58DC71D5@mail.test.com>
Date: Mon, 9 Aug 2004 21:11:20 +0800 (CST)
From: webmaster@test.com
To: undisclosed-recipients:;

test
.
dele 1 //删除
+OK Deleted
quit

+OK Bye-bye
Connection closed by foreign host

也可以使用任何其它的邮件客户端程序来测试，如foxmail、Outlook Express等等。