架构基于FreeBSD和Postfix的邮件系统（一）

架构基于FreeBSD和Postfix的邮件系统 (全ports安装）

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架构基于FreeBSD和Postfix的邮件系统

FreeBSD+Postfix+cyrus-sasl+Courier-imap+igenus+Clamav+amavisd-new

杨廷勇

本文介绍使用FreeBSD+Postfix+cyrus-sasl+Courier-imap+igenus+Clamav+amavisd-new来架构一个具有多域名，有webmai防病毒

和垃圾邮件并有web管理界面的邮件系统。

scyzxp, $Revision: 0.1 $Date: 2005-1-25

________________________________________

Table of Contents

1. 系统简介

1.1 系统结构

1.2 软件介绍

2. 系统安装

2.1 安装perl

2.2 安装MySQL

2.3 安装Apache

2.4 安装PHP

2.5 安装openssl

2.6 安装phpMyAdmin

2.7 通过phpMyadmin设置数据库

2.8 安装cyrus-sasl和cyrus-sasl2-saslauthd

2.9 安装pam_mysql

2.10 安装postfix

2.11 安装expect

2.12 安装Courier-imap

3. 设置第一个用户并测试

3.1 设置第一个用户

3.2 用户登录测试

3.3 建立其他用户

4. 防病毒与防垃圾邮件

4.1 安装Clamav

4.2 安装amavisd-new

4.3 安装配置Spamassassin

5. 安装webmail

6. 邮件服务器的管理

6.1 配置apache

6.2 管理程序源代码

6.3 配置文件config.inc.php

6.4 增加域名

6.5 增加用户

6.6 查看系统状态

Chapter 1. 系统简介

本章介绍了系统的组成。

________________________________________

1.1 系统结构

________________________________________

1.2 软件介绍

________________________________________

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。

________________________________________

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

________________________________________

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

________________________________________

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"

________________________________________

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

________________________________________

2.5 安装openssl

mail# cd /usr/ports/security/openssl

mail# make install clean

________________________________________

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';

________________________________________

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;

________________________________________

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

________________________________________

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

________________________________________

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

________________________________________

2.11 安装expect

mail# cd /usr/ports/lang/expect

mail# make install clean

________________________________________

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 $

# 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;

+-------+--------------+------+-----+---------+-------+

+-------+--------------+------+-----+---------+-------+

+-------+--------------+------+-----+---------+-------+

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;

+-----------+-----------+------+-----+---------+-------+

+-----------+-----------+------+-----+---------+-------+

+-----------+-----------+------+-----+---------+-------+

mysql> insert transport values('test.com','virtual:');

mysql> select * from transport;

+---------------+-----------+

| domain | transport |

+---------------+-----------+

| test.com | virtual: |

+---------------+-----------+

mysql> desc virtual_users;

+-----------+---------------------+------+-----+----------+----------------+

+-----------+---------------------+------+-----+----------+----------------+

| id | char(128) | | PRI | | |

| uid | int(10) unsigned | YES | | 104 | |

| gid | int(10) unsigned | YES | | 104 | |

| 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。