postconf -a // 验证是否支持cyrus dovecot功能

service postfix start //启动服务

netstat -anpt | grep 25 //SMTP 端口号

service postfix status //查看服务是否启动

[root@localhost ~]# vi /etc/named.conf

options {
listen-on port 53 { 192.168.80.80; }; //改成服务器网址
allow-query { any; };

[root@localhost ~]# vi /etc/named.rfc1912.zones
zone "aa.com" IN { // 设邮件地址
type master;
file "aa.com.zone";
};

zone "80.168.192.in-addr.arpa" {
type master;
file "aa.com.local";
};

[root@localhost ~]# cd /var/named/
[root@localhost named]# ls
data dynamic named.ca named.empty named.localhost named.loopback slaves
[root@localhost named]# cp -p named.localhost aa.com.zone

[root@localhost named]# vi aa.com.zone
NS mail.aa.com.
MX 10 mail.aa.com.
mail A 192.168.80.189

[root@localhost named]# cp -p aa.com.zone aa.com.local
[root@localhost named]# vi aa.com.local
$TTL 1D
@ IN SOA aa.com. rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS mail.aa.com.
MX 10 mail.aa.com.
189 PTR mail.aa.com.

[root@localhost named]# service named start
Redirecting to /bin/systemctl start named.service
[root@localhost named]# systemctl enable named

[root@localhost named]# vi /etc/resolv.conf
nameserver 192.168.80.189

[root@localhost named]# yum provides nslookup
[root@localhost named]# nslookup mail.aa.com
[root@localhost named]# vi /etc/postfix/main.cf

vi /etc/postfix/main.cf

myhostname = mail.aa.com
mydomain = aa.com
myorigin = $mydomain
inet_interfaces = 192.168.80.181, 127.0.0.1
inet_protocols = ipv4
mydestination = $myhostname, $mydomain
home_mailbox = Maildir/

[root@localhost named]# postfix check
[root@localhost named]# service postfix reload

[root@localhost named]# postfix -n

-----增加邮件测试账号-------
groupadd mailusers
useradd -g mailusers -s /sbin/nologin jack
passwd jack
useradd -g mailusers -s /sbin/nologin tom
passwd tom

yum install telnet
[root@localhost named]# telnet mail.aa.com 25
telnet: connect to address 192.168.80.80: Connection refused //查看防火墙(service firewalld status 和 service postfix restart)

Trying 192.168.80.80...
Connected to mail.aa.com.
Escape character is '^]'.
220 mail.aa.com ESMTP Postfix
helo mail.aa.com
250 mail.aa.com
mail from:jack@aa.com
250 2.1.0 Ok
rcpt to:tom@aa.com
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
i am jack
fuck
.
250 2.0.0 Ok: queued as CA48110AEE8A
quit
221 2.0.0 Bye

--使用root查看tom用户是否收到测试邮件----

cat /home/tom/Maildir/new/(1515928363.Vfd02I600041M10880
.localhost.localdomain = tap补齐)

------安装dovecot提供收信服务------

yum install dovecot

vi /etc/dovecot/dovecot.conf

protocols = imap pop3 lmtp 去掉注解#
!include conf.d/10-auth.conf
--以下手写--
ssl = no
disable_plaintext_auth = no
mail_location = maildir:~/Maildir

service dovecot start //启动服务

netstat -anpt | grep dovecot // 110 143端口需要监听

---以下测试收信----
telnet mail.aa.com 110

user tom

pass 123123

list

1 381
.
retr 1

quit

outlook 配置测试。
tom@aa.com //帐号
密码:123 // 设置帐号时增加密码

--------以下进行发信认证配置------

yum install cyrus-sasl* //关注

vi /etc/sasl2/smtpd.conf

pwcheck_method: saslauthd
mech_list: plain login
log_level:3

vi /etc/sysconfig/saslauthd
MECH=shadow

service saslauthd start
systemctl enable saslauthd

vi /etc/postfix/main.cf

--在末尾新增--

smtpd_sasl_auth_enable = yes //开启认证
smtpd_sasl_security_options = noanonymous //不允许匿名发信
mynetworks = 127.0.0.0/8 //允许的网段,如果增加本机所在网段就会出现允许不验证也能向外域发信
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination //允许本地域以及认证成功的发信，拒绝认证失败的发信

postfix check
service postfix reload

----测试普通发信-----
telnet mail.aa.com 25

helo mail.aa.com

mail from:jack@aa.com

rcpt to:weisheng213@126.com //提示：Relay access denied

quit
------测试认证发信,注意：一定要关闭SELINUX-----

---以下将用户名密码生成密文----
[root@localhost sasl2]# printf "jack" | openssl base64
amFjaw==
[root@localhost sasl2]# printf "123" | openssl base64
MTIz

----------以下是配置squirrelmail收发邮件----------------

注意：需要搭建好LAMP环境
--------RPM安装LAMP---------
yum install -y \
httpd \
mariadb-server mariadb \
php \
php-mysql \
php-gd \
libjpeg* \
php-ldap \
php-odbc \
php-pear \
php-xml \
php-xmlrpc \
php-mhash

vi /etc/httpd/conf/httpd.conf
ServerName www.aa.com
DirectoryIndex index.html index.php

vi /etc/php.ini
date.timezone = PRC

systemctl stop firewalld.service
setenforce 0

systemctl start httpd.service
systemctl start mariadb.service

netstat -anpt | grep 80
netstat -anpt | grep 3306

mysql_secure_installation

vi /var/www/html/index.php

<?php
phpinfo();
?>

http://192.168.80.80/ //服务器网址

--------进入数据库，建立授权账号-----
mysql -u root -p

CREATE DATABASE abc;
GRANT all ON abc.* TO 'mail'@'%' IDENTIFIED BY '123456';
flush privileges;
--------下面测试数据库工作是否正常-----
<?php
$link=mysql_connect('192.168.80.181','mail','123456'); //服务网址
if($link) echo "<h1>Success!!</h1>";
else echo "Fail!!";
mysql_close();
?>

------上传服务器压缩包
[root@localhost ~]# yum install vsftpd -y
[root@localhost ~]# vi /etc/vsftpd/vsftpd.conf
[root@localhost ~]# systemctl restart vsftpd
[root@localhost ~]# cd /var/ftp/
[root@localhost ftp]# ls