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Sendmail配置及应用

2012年07月09日 综合 ⁄ 共 1631字 ⁄ 字号 暂无评论

一.sendmail介绍

邮件系统角色

MUA(邮件用户代理)、MTA(邮件传输代理)、MDA(邮件分发代理 )

邮件应用协议

SMTP,简单邮件传输协议,TCP 25端口

POP3,第3版邮局协议,TCP 110端口

IMAP4,第4版因特网消息访问协议,TCP 143端口

二.sendmail的基本配置

(1)邮件服务器

yum install sendmail m4 sendmail-cf sendmail-doc

1.cd /etc/mail

2.vim sendmail.mc

:/127.0.0.1=0.0.0.0

3.vim access

Connect:127.0.0.1 RELAY

Connect:192.168.101 RELAY(向外转发)

liuwei.com OK

4.vim local-host-names

liuwei.com

(本地区域名)

5.vim /etc/sysconfig/network

hostname=mail.liuwei.com

6.vim /etc/hosts

mail.liuwei.com

7.vim /etc/resolv.conf DNS指向

nameserver 192.168.101.200

(2)DNS服务器

1.cd /var/named/chroot/etc

2.cp -p named.caching named.conf

3.vim named.conf

27 any

28 any

37 any

38 any

4.vim named.rfc1912.zones

zone "liuwei.com" IN {

type master;

file "liuwei.com.zone";

allow-update { none; };

};

zone "101.168.192.in-addr.arpa" IN {

type master;

file "192.168.101.zone";

allow-update { none; };

};

5.cd ../var/named/

6.cp -p localhost.zone liuwei.com.zone

7.vim liuwei.com.zone

2 @ IN SOA ns.liuwei.com.

9 @ IN NS ns.liuwei.com.

10ns IN A 192.168.101.200

11mail IN A 192.168.101.200

12pop3 IN CNAME mail

13smtp IN CNAME mail

14@ IN MX 10 mail

8.vim 192.168.101.zone

加上 200 IN PTR mail.liuwei.com.

9.init 6

10.yum install -y dovecot

11.service dovecot start

三.发送的加密
cd /etc/mail
mkdir certs
cd certs/
openssl genrsa 1024 >sendmail.key
openssl req -new -key sendmail.key -out sendmail.csr
openssl ca -in sendmail.csr -out sendmail.cert
sendmail -d0.1 -bv
cd ..
vim sendmail.mc

cd certs
cp /etc/pki/CA/cacert.pem ./
chmod 600 *

四.接收的加密
mkdir -pv /etc/dovecot/certs
cd /etc/dovecot/certs
openssl genrsa 1024 >dovecot.key
openssl req -new -key dovecot.key -out dovecot.csr
openssl ca -in dovecot.csr -out dovecot.cert
chmod 600 *
vim /etc/dovecot.conf
21 加 imaps

五.身份的验证
service saslauthd start
chkconfig saslauthd on
vim /usr/lib/sas12/sendmail.conf
vim /etc/mail/sendmail.mc
116 Name=MTA ,M=Ea')dn1

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