第一部分：安装邮件服务器：postfix+vm-pop3d+openwebmail
以下的安装在FreeBSD 5.2.1系统上完成
1．更新 ports
# cvsup -gL 2 -h cvsup.freebsdchina.org /usr/share/examples/cvsup/ports-supfile
2. 安装 openssl+apache 服务器
# cd /usr/ports/security/openssl
# make install
# make clean
# cd /usr/ports/www/apache2
# make install
# make clean
# vi /etc/rc.conf
apache2_enable="YES"
3. 安装 openwebmail
# cd /usr/ports/mail/openwebmail/
# make WITH_QUOTA=yes install
# make clean
4. 安装 postfix ，在安装过程中用yes回答提出的问题
# cd /usr/ports/mail/postfix/
# make install
# make clean
# vi /etc/rc.conf
为了能启动postfix加入：
sendmail_enable="YES"
sendmail_flags="-bd"
sendmail_pidfile="/var/spool/postfix/pid/master.pid"
sendmail_outbound_enable="NO"
sendmail_submit_enable="NO"
5. 安装 vm-pop3d
# cd /usr/ports/mail/vm-pop3d
# make install
# make clean
6. 配置 postfix
# vi /usr/local/etc/postfix/main.cf
添加：
virtual_alias_maps=hash:/usr/local/etc/postfix/virtual
alias_maps=hash:/usr/local/etc/postfix/aliases
default_privs=nobody
allow_mail_to_commands = alias,forward,include
allow_mail_to_files = alias,forward,include
下面我加入一个 nero.3322.org 的虚拟域，并添加一个用户llzqq
# vi /usr/local/etc/postfix/virtual
添加：
nero.3322.org anything //之间用[tab]
llzqq@nero.3322.org llzqq.nero.3322.org //之间用[tab]
执行下面的命令，生成 virtual.db：
# cd /usr/local/etc/postfix/
# postmap virtual
# vi /usr/local/etc/postfix/aliases
添加：
llzqq.nero.3322.org:/var/spool/virtual/nero.3322.org/llzqq
执行下面的命令，生成 aliases.db:
# cd /usr/local/etc/postfix
# postalias aliases
7. 配置 vm-pop3d 使其开机自动执行
# cd /usr/local/etc/rc.d
# mv vm-pop3d.sh.sample vm-pop3d.sh
配置 openwebmail 支持 nero.3322.org 域，创建下面的文件：
# vi /usr/local/www/cgi-bin/openwebmail/etc/sites.conf/nero.3322.org
=========================== nero.3322.org =======================
auth_module auth_vdomain.pl
auth_withdomain yes
mailspooldir /var/spool/virtual/nero.3322.org
use_syshomedir no
use_homedirspools no
enable_autoreply no
enable_setforward no
enable_vdomain yes
vdomain_admlist llzqq //这里设置了这个域的管理员
vdomain_maxuser 500
vdomain_vmpop3_pwdpath /usr/local/etc/virtual
vdomain_vmpop3_pwdname passwd
vdomain_vmpop3_mailpath /var/spool/virtual
vdomain_postfix_aliases /usr/local/etc/postfix/aliases
vdomain_postfix_virtual /usr/local/etc/postfix/virtual
vdomain_postfix_postalias /usr/local/sbin/postalias
vdomain_postfix_postmap /usr/local/sbin/postmap
# quota设置部分
quota_module quota_du.pl
quota_limit 52400 //定义了邮箱大小
quota_threshold 85
delmail_ifquotahit no
delfile_ifquotahit no
=========================== nero.3322.org =======================
# mkdir -p /var/spool/virtual/nero.3322.org
# chown nobody /var/spool/virtual/nero.3322.org
# chgrp mail /var/spool/virtual/nero.3322.org
# mkdir -p /usr/local/etc/virtual/nero.3322.org
# touch /usr/local/etc/virtual/nero.3322.org/passwd
# chmod 644 /usr/local/etc/virtual/nero.3322.org/passwd
# htpasswd /usr/local/etc/virtual/nero.3322.org/passwd llzqq
# chmod 755 /usr/local/www/cgi-bin/openwebmail/etc/users
# sync
# reboot
8. 最后通过浏览器登陆到OPENWEBMAIL
http://nero.3322.org/cgi-bin/openwebmail/openwebmail.pl
第二部分：防病毒、垃圾邮件：clamav+amavisd-new+spam
1．0 安装clamav:
# cd /usr/ports/security/clamav
# make install
# make clean
# vi /usr/local/etc/clamav.conf
===============================clamav.conf============================
# Comment or remove the line below.
# Example
LogFile /var/log/clamav/clamd.log
LogFileMaxSize 1M
LogTime
LogVerbose
PidFile /var/run/clamav/clamd.pid
DataDirectory /usr/local/share/clamav
LocalSocket /tmp/clamd
StreamMaxLength 10M
MaxThreads 10
MaxDirectoryRecursion 15
User clamav
ScanMail
ScanArchive
ScanRAR
ArchiveMaxFileSize 10M
ArchiveMaxRecursion 5
ArchiveMaxFiles 1000
ClamukoScanOnOpen
ClamukoScanOnClose
ClamukoScanOnExec
ClamukoIncludePath /var/spool/virtual
ClamukoMaxFileSize 6M
ClamukoScanArchive
===============================clamav.conf============================
1.1 更新病毒库
# /usr/local/etc/rc.d/clamav-freshclam.sh start
2.0 安装amavisd-new
# cd /usr/ports/security/amavisd-new
# make install
# make clean
# cd /usr/local/etc
# mv amavisd.conf-dist amavisd.conf
# vi amavisd.conf
============================== amavisd.conf ===============================
$MYHOME = '/var/amavis'; # (default is '/var/amavis')
$mydomain = 'nero.3322.org'; # (no useful default)
$daemon_user = 'vscan'; # (no default; customary: vscan or amavis)
$daemon_group = 'vscan'; # (no default; customary: vscan or amavis)
$log_level = 0;
$sa_spam_subject_tag = '***SPAM***'
$virus_admin = "root\@$mydomain";
$spam_admin = "llzqq\@$mydomain";
$mailfrom_notify_admin = "llzqq\@$mydomain";
$mailfrom_notify_recip = "llzqq\@$mydomain";
$mailfrom_notify_spamadmin = "llzqq\@$mydomain";
$inet_socket_bind = '127.0.0.1';
$forward_method = 'smtp:127.0.0.1:10025';
$notify_method = $forward_method;
$inet_socket_port = 10024;
$max_servers = 2;
['Clam Antivirus-clamd',
\&ask_daemon, ["CONTSCAN {}\n", '/tmp/clamd'],
qr/\bOK$/, qr/\bFOUND$/,
qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
============================== amavisd.conf ===============================
2.1 要启动clamav和amavisd-new需要配置一下/etc/rc.conf
# vi /etc/rc.conf
spamd_enable="YES"
amavisd_enable="YES
clamav_clamd_enable="YES"
3.0 由于在安装amavisd-new时spamassassin被一起安装了下面对其进行配置
3.1 建立过滤规则：
# cd /usr/local/etc/mail/spamassassin
# env LANG=C vi local.cf
=============================== local.cf ===============================
# SpamAssassin config file for version x.xx
# generated by http://www.yrex.com/spam/spamconfig.php (version 1.01)
# How many hits before a message is considered spam.
required_hits 4.0
# Whether to change the subject of suspected spam
rewrite_subject 1
# Text to prepend to subject if rewrite_subject is used
subject_tag *****SPAM*****
# Encapsulate spam in an attachment
report_safe 1
# Use terse version of the spam report
use_terse_report 0
# Enable the Bayes system
