Postfix与Dovecot

配置主机名称

[root@localhost ~]# vim /etc/hostname
mail.linuxprobe.com
[root@localhost ~]# hostname
mail.linuxprobe.com

清空防火墙

[root@localhost ~]# iptables -F
[root@localhost ~]# service iptables save
iptables: Saving firewall rules to /etc/sysconfig/iptables:[  OK  ]

部署DNS域名解析服务，为电子邮件系统提供域名解析

[root@linuxprobe ~]# yum install bind-chroot
[root@linuxprobe ~]# systemctl restart named
[root@linuxprobe ~]# systemctl enable named
ln -s '/usr/lib/systemd/system/named.service' '/etc/systemd/system/multi-user.target.wants/named.service'

 10 options {
 11         listen-on port 53 { any; };
 12         listen-on-v6 port 53 { ::1; };
 13         directory       "/var/named";
 14         dump-file       "/var/named/data/cache_dump.db";
 15         statistics-file "/var/named/data/named_stats.txt";
 16         memstatistics-file "/var/named/data/named_mem_stats.txt";
 17         allow-query     { any; };
 18 

zone "linuxprobe.com" IN {
        type master;
        file "linuxprobe.com.zone";
        allow-update { none;};
}；

[root@localhost ~]# cd /var/named
[root@localhost named]# ls
chroot  dynamic   named.empty      named.loopback
data    named.ca  named.localhost  slaves
[root@localhost named]# cp -a named.localhost linuxprobe.com.zone
[root@localhost named]# vim linuxprobe.com.zone
$TTL 1D
@       IN SOA  linuxprobe.com. root.linuxprobe.com. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      ns.linuxprobe.com.
ns      IN A    192.168.10.10
@       IN MX   10 mail.linuxprobe.com.
mail    IN A    192.168.10.10

[root@localhost named]# systemctl restart named

[root@linuxprobe named]# nmtui

 配置Postfix服务程序

[root@linuxprobe ~]# yum install postfix
Loaded plugins: fastestmirror, langpacks
ding                                              | 3.6 kB     00:00     
Loading mirror speeds from cached hostfile
Package 2:postfix-2.10.1-6.el7.x86_64 already installed and latest version
Nothing to do
[root@linuxprobe ~]# systemctl restart postfix
[root@linuxprobe ~]# systemctl enable postfix
[root@linuxprobe ~]# systemctl disable iptables

[root@localhost ~]# vim /etc/postfix/main.cf
75 myhostname = mail.linuxprobe.com
83 mydomain = linuxprobe.com
98 myorigin = $mydomain
113 inet_interfaces = all
163 mydestination = $myhostname, $mydomain

[root@localhost ~]# systemctl restart postfix

[root@linuxprobe ~]# useradd ding
[root@linuxprobe ~]# su - ding
[ding@mail ~]$ exit
logout
[root@linuxprobe ~]# passwd ding
Changing password for user ding.
New password: 
BAD PASSWORD: The password is shorter than 8 characters
Retype new password: 
passwd: all authentication tokens updated successfully.

配置Dovecot服务程序

[root@linuxprobe ~]# yum install dovecot -y
[root@linuxprobe ~]# systemctl restart dovecot
[root@linuxprobe ~]# systemctl enable dovecot
ln -s '/usr/lib/systemd/system/dovecot.service' '/etc/systemd/system/multi-user.target.wants/dovecot.service'

[root@localhost ~]# vim /etc/dovecot/dovecot.conf
24 protocols = imap pop3 lmtp
25 disable_plaintext_auth=no
48 login_trusted_networks = 192.168.10.0/24

[root@localhost ~]# vim /etc/dovecot/conf.d/10-mail.conf
25    mail_location = mbox:~/mail:INBOX=/var/mail/%u

[root@localhost ~]# systemctl restart dovecot

[root@linuxprobe ~]# su - ding
Last login: Thu Feb  6 17:28:06 CST 2020 on pts/0
[ding@mail ~]$ mkdir -p mail/.imap/INBOX
[ding@mail ~]$ ls
mail
[ding@mail ~]$ ll
total 0
drwxrwxr-x. 3 ding ding 18 Feb  6 17:29 mail
[ding@mail ~]$ exit
logout
[root@linuxprobe ~]#