在Ubuntu上部署邮件服务器可参考以下步骤:
准备工作
sudo apt update && sudo apt upgrade -y。安装核心组件
sudo apt install postfix,安装时选择“Internet Site”并输入域名。sudo apt install dovecot-core dovecot-imapd dovecot-pop3d。配置Postfix
/etc/postfix/main.cf,设置:myhostname = mail.yourdomain.com mydomain = yourdomain.com myorigin = $mydomain inet_interfaces = all mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain smtpd_tls_cert_file = /etc/letsencrypt/live/yourdomain.com/fullchain.pem smtpd_tls_key_file = /etc/letsencrypt/live/yourdomain.com/privkey.pem smtpd_use_tls = yes ```。 配置Dovecot
/etc/dovecot/dovecot.conf,设置:mail_location = maildir:/Maildir protocols = imap pop3 ssl = yes ssl_cert = </etc/letsencrypt/live/yourdomain.com/fullchain.pem ssl_key = </etc/letsencrypt/live/yourdomain.com/privkey.pem ```。 启用防火墙
sudo ufw allow 25/tcp # SMTPsudo ufw allow 143/tcp # IMAPsudo ufw allow 110/tcp # POP3sudo ufw reload。测试与优化
注意:生产环境需进一步配置SASL认证、邮件转发规则,并定期更新系统及软件包。
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