centos7搭建邮件服务器postfix

分手后的思念是犯贱 2022-01-12 00:23 445阅读 0赞

### 一、服务端： ###

1.  卸载sendmail：
    
        yum  -y  remove  sendmail
2.  安装软件：
    
        yum  -y  install  postfix  dovecot  cyrus-sasl-*  mailx
3.  配置postfix：  
    vim /etc/postfix/main.cf
    
        queue_directory = /var/spool/postfix
        command_directory = /usr/sbin
        daemon_directory = /usr/libexec/postfix
        data_directory = /var/lib/postfix
        mail_owner = postfix
        myhostname = mail.dollarphp.com         #这里要换成你自己的邮箱服务器
        mydomain = dollarphp.com                #这里换成你自己的主机服务器
        myorigin = $mydomain
        inet_interfaces = all
        inet_protocols = ipv4
        mydestination = $myhostname, localhost.$mydomain, localhost,$mydomain,mail.$mydomain,www.$mydomain, ftp.$mydomain
        local_recipient_maps =
        unknown_local_recipient_reject_code = 550
        mynetworks = 0.0.0.0/0
        relay_domains = $mydestination
        alias_maps = hash:/etc/aliases
        alias_database = hash:/etc/aliases
        home_mailbox = Maildir/
        smtpd_banner = $myhostname ESMTP
        debug_peer_level = 2
        debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5
        sendmail_path = /usr/sbin/sendmail.postfix
        newaliases_path = /usr/bin/newaliases.postfix
        mailq_path = /usr/bin/mailq.postfix
        setgid_group = postdrop
        html_directory = no
        manpage_directory = /usr/share/man
        sample_directory = /usr/share/doc/postfix-2.10.1/samples
        readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES
        smtpd_sasl_auth_enable = yes
        smtpd_sasl_security_options = noanonymous
        broken_sasl_auth_clients = yes
        smtpd_recipient_restrictions = permit_sasl_authenticated,reject_unauth_destination,permit_mynetworks
        smtpd_client_restrictions = permit_sasl_authenticated
4.  配置dovecot：  
    a. 配置监听协议：  
    vim /etc/dovecot/dovecot.conf
    
        protocols = imap pop3 lmtp
        listen = *
        dict {
        }
        !include conf.d/*.conf
        !include_try local.conf
    
    b. 配置登录方式：  
    vim /etc/dovecot/conf.d/10-auth.conf
    
        disable_plaintext_auth = no
        auth_mechanisms = plain login
        !include auth-system.conf.ext
    
    c. 配置邮件存储位置：  
    vim /etc/dovecot/conf.d/10-mail.conf
    
        mail_location = maildir:~/Maildir
        namespace inbox {
        inbox = yes
        }
        first_valid_uid = 1000
        mbox_write_locks = fcntl
    
    d. 配置ssl（关闭）：  
    vim /etc/dovecot/conf.d/10-ssl.conf
    
        ssl = no
        ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
        ssl_key = </etc/pki/dovecot/private/dovecot.pem
5.  配置sasl2：  
    a. 配置系统认证：  
    vim /etc/sysconfig/saslauthd
    
        SOCKETDIR=/run/saslauthd
        MECH=pam
        FLAGS=
    
    b. 配置登录方式（创建新文件）：  
    vim /usr/lib64/sasl2/smtpd.conf
    
        pwcheck_method: saslauthd
        mech_list: PLAIN LOGIN
        log_level:3
6.  添加用户：
    
        useradd  dollarphp
        passwd  dollarphp
7.  启动服务：
    
        systemctl  start  dovecot
        systemctl  start  postfix
        systemctl  start  saslauthd
8.  配置mailx：  
    vim /etc/mail.rc
    
        set hold
        set append
        set ask
        set crt
        set dot
        set keep
        set emptybox
        set indentprefix="> "
        set quote
        set sendcharsets=iso-8859-1,utf-8
        set showname
        set showto
        set newmail=nopoll
        set autocollapse
        set markanswered
        ignore received in-reply-to message-id references
        ignore mime-version content-transfer-encoding
        fwdretain subject date from to
        set bsdcompat
        set from=adminmail@dollarphp.com
        set smtp=mail.dollarphp.com
        set smtp-auth-user=adminmail
        set smtp-auth-password=123456
        set smtp-auth=login
9.  发送邮件
10.     echo  "内容"  |  mail  -s  "标题"  complet@163.com
        或
        mail  -s  "标题"  complet@163.com  <  test.txt
11. 查看发送日志：
    
        tail  /var/log/maillog

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zNzU2OTA0OA_size_16_color_FFFFFF_t_70][]

1.  ### 二、客户端： ###
2.  linux（接收）：  
    a. 安装telnet：
    
        yum  -y  install  telnet
    
    b. 登录（dovecot的默认端口是110）：
    
        telnet  104.225.233.249  110
    
    c. 测试：  
    ![centos7搭建邮件服务器postfix][centos7_postfix]
3.  ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zNzU2OTA0OA_size_16_color_FFFFFF_t_70 1][]  
    
4.      USER  xxx：输入用户名
        PASS  xxx：输入密码
        LIST：显示信箱
        RETR n：打开第n封信
    
    e. 退出telnet：
    
        ctl+]
        quit
5.  windows（发送+接收）：  
    a. 安装foxmail（官网：[http://www.foxmail.com/][http_www.foxmail.com]）：

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zNzU2OTA0OA_size_16_color_FFFFFF_t_70]: /images/20220109/7ab96cfd72f94406a84dde487fe6832a.png
[centos7_postfix]: https://s1.51cto.com/images/blog/201805/28/4ef2694ce589d5a51c6b2380fba766e7.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zNzU2OTA0OA_size_16_color_FFFFFF_t_70 1]: /images/20220109/092b26ed965c4fe6965bc383bcdd31b4.png
[http_www.foxmail.com]: http://www.foxmail.com/