CentOS 7.2下安装部署邮件服务器(Postfix)的步骤详解

2025-05-26 0 34

本文主要介绍的是在CentOS 7.2安装部署邮件服务器(Postfix)的相关内容,分享出来供大家参考学习,下面来看看详细的介绍:

Postfix 是一种电子邮件服务器,它是由任职于IBM华生研究中心(T.J. Watson Research Center)的荷兰籍研究员Wietse Venema为了改良sendmail邮件服务器而产生的。最早在1990年代晚期出现,是一个开放源代码的软件。

注意:以下所有配置的命名都是根据主机的hostname变量来配置的,如果hostname更换了的话,需要重新生成证书。

生成ssl证书

1、生成证书的脚本代码

以hostname为命名生成证书,运行脚本后需输入四次相同密码(密码须包含数字和字母)

?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22
#!/bin/sh

rm -rf $(hostname).*

openssl genrsa -des3 -out $(hostname).key 1024

SUBJECT="/C=US/ST=Mars/L=iTranswarp/O=iTranswarp/OU=iTranswarp/CN=$(hostname)"

openssl req -new -subj $SUBJECT -key $(hostname).key -out $(hostname).csr

mv $(hostname).key $(hostname).origin.key

openssl rsa -in $(hostname).origin.key -out $(hostname).key

openssl x509 -req -days 3650 -in $(hostname).csr -signkey $(hostname).key -out $(hostname).crt

cp $(hostname).crt /etc/pki/tls/certs/$(hostname).crt

cp $(hostname).key /etc/pki/tls/certs/$(hostname).key

echo "the key path:/etc/pki/tls/certs/$(hostname).key"

echo "the crt path:/etc/pki/tls/certs/$(hostname).crt"

rm -rf $(hostname).*

Postfix安装及配置

安装

?

1
yum -y install postfix

配置

vim /etc/postfix/main.cf

?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44
# line 75: uncomment and specify hostname

myhostname = $(hostname)

# line 83: uncomment and specify domain name

mydomain = test.cn

# line 99: uncomment

myorigin = $mydomain

# line 116: change

inet_interfaces = all

# line 164: add

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain

# line 264: uncomment and specify your local network

mynetworks = 127.0.0.0/8, 10.0.0.0/24

# line 419: uncomment (use mailboxdir)

home_mailbox = mailbox/

# line 574: add

smtpd_banner = $myhostname ESMTP

# 在配置文件尾部追加以下内容

# limit an email size for 10M

message_size_limit = 10485760

# limit a mailbox for 1G

mailbox_size_limit = 1073741824

# for SMTP-Auth

smtpd_sasl_type = dovecot

smtpd_sasl_path = private/auth

smtpd_sasl_auth_enable = yes

smtpd_sasl_security_options = noanonymous

smtpd_sasl_local_domain = $myhostname

smtpd_recipient_restrictions = permit_mynetworks,permit_auth_destination,permit_sasl_authenticated,reject

smtpd_use_tls = yes

smtpd_tls_cert_file = /etc/pki/tls/certs/$(hostname).crt

smtpd_tls_key_file = /etc/pki/tls/certs/$(hostname).key

smtpd_tls_session_cache_database = btree:/etc/postfix/smtpd_scache

vim /etc/postfix/master.cf

?

1

2

3

4
# line 26-28: uncomment

smtps inet n - n - - smtpd

-o syslog_name=postfix/smtps

-o smtpd_tls_wrappermode=yes

Dovecot 安装及配置

安装

?

1
yum -y install dovecot

配置

vim /etc/dovecot/dovecot.conf

?

1

2

3

4
# line 24: uncomment

protocols = imap pop3 lmtp

# line 30: uncomment and change ( if not use IPv6 )

listen = *

vim /etc/dovecot/conf.d/10-auth.conf

?

1

2

3

4
# line 10: uncomment and change ( allow plain text auth )

disable_plaintext_auth = no

# line 100: add

auth_mechanisms = plain login

vim /etc/dovecot/conf.d/10-mail.conf

?

1

2
# line 30: uncomment and add

mail_location = maildir:~/Maildir

vim /etc/dovecot/conf.d/10-master.conf

?

1

2

3

4

5

6

7
# line 96-98: uncomment and add like follows

# Postfix smtp-auth

unix_listener /var/spool/postfix/private/auth {

mode = 0666

user = postfix

group = postfix

}

vim /etc/dovecot/conf.d/10-ssl.conf

?

1

2

3

4

5
# line 8: change

ssl = yes

# line 14,15: specify certificates

ssl_cert = </etc/pki/tls/certs/$(hostname).crt

ssl_key = </etc/pki/tls/certs/$(hostname).key

运行

?

1

2

3

4

5

6

7

8

9

10
systemctl restart postfix

systemctl enable postfix

systemctl start dovecot

systemctl enable dovecot

firewall-cmd --add-service=smtp --permanent

firewall-cmd --add-port={110/tcp,143/tcp} --permanent

firewall-cmd --add-service={pop3s,imaps} --permanent

firewall-cmd --add-port=465/tcp --permanent

firewall-cmd --reload

邮件日志报告pflogsumm

安装

?

1
yum -y install postfix-perl-scripts

查看

?

1
perl /usr/sbin/pflogsumm -d yesterday /var/log/maillog

每天1:00AM 定时发送邮件日志摘要到根

?

1

2
crontab -e

00 01 * * * perl /usr/sbin/pflogsumm -e -d yesterday /var/log/maillog | mail -s 'Logwatch for Postfix' root

总结

以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流,谢谢大家对快网idc的支持。

原文链接:https://hanxv.cn/archives/90.html

收藏 (0) 打赏

感谢您的支持,我会继续努力的!

打开微信/支付宝扫一扫,即可进行扫码打赏哦,分享从这里开始,精彩与您同在
点赞 (0)

声明:本站所有文章,如无特殊说明或标注,均为本站原创发布。任何个人或组织,在未征得本站同意时,禁止复制、盗用、采集、发布本站内容到任何网站、书籍等各类媒体平台。如若本站内容侵犯了原著者的合法权益,可联系我们进行处理。

快网idc优惠网 行业资讯 CentOS 7.2下安装部署邮件服务器(Postfix)的步骤详解 https://www.kuaiidc.com/52083.html

相关文章

发表评论
暂无评论