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Chapter 4. postfix - High-performance mail transport agent

Table of Contents

4.1. install
4.1.1. Ubuntu
4.1.2. CentOS
4.1.3. OSCM 通過配置管理腳本安裝
4.2. 配置 Postfix
4.2.1. 轉發配置
4.2.2. 拒收垃圾郵件
4.2.3. 收件箱配置
4.2.3.1. Mailbox 配置
4.2.3.2. Maildir 配置
4.2.3.3. 傳統Unix風格郵箱配置
4.2.4. 郵件投遞
4.2.5. 隊列配置
4.2.6. 客戶端
4.2.7. SMTP 發送權限相關配置
4.3. aliases
4.4. dkim
4.4.1. 增加域名
4.4.2. 測試
4.5. Rspamd
4.6. /var/log/maillog
4.6.1. 計算每分鐘發送數量日誌統計
4.6.2. 虛假地址統計
4.7. Post 命令
4.7.1. postconf - Postfix configuration utility
4.7.2. postsuper
4.7.3. postqueue - Postfix queue control
4.7.3.1. 列出隊列
4.7.3.2. 刷新隊列
4.7.4. postmulti - Postfix multi-instance manager
4.7.4.1. 綁定IP地址
4.7.4.2. postfix 多實例配置
4.7.4.3. 配置 iptables 讓SMTPD發送郵件時依次輪詢外發IP地址,這樣就不會被封鎖。
4.8. Example
4.8.1. 站內電郵發送
4.8.2. EDM 伺服器
4.8.3. SMTP 郵件發送伺服器
4.9. FAQ
4.9.1. SMTP ERROR: RCPT TO command failed: 501 5.1.3 Bad recipient address syntax
4.9.2. connect to gmail-smtp-in.l.google.com[2607:f8b0:400e:c00::1a]:25: Network is unreachable
4.9.3. opendkim[5762]: 3012A802C1DD: [49.213.11.18] [49.213.11.18] not internal
4.9.4. opendkim[12578]: 4CC5C802C382: no signature data
4.9.5. /etc/opendkim/keys/default.private: open(): No such file or directory
4.9.6. fatal: parameter inet_interfaces: no local interface found for ::1
4.9.7. NOQUEUE: reject: MAIL from unknown[192.168.3.31]: 552 5.3.4 Message size exceeds fixed limit;
4.9.8. 452 4.3.1 Insufficient system storage
4.9.9. 454 Relay access denied

Postfix 主頁

4.1. install

4.1.1. Ubuntu

				$ sudo apt install postfix
			

configure

				$ sudo dpkg-reconfigure postfix-config
			

4.1.2. CentOS

				# yum install -y postfix
			
				myhostname = mail.example.com
				mydomain = example.com
				myorigin = $mydomain
				inet_interfaces = all
				mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
				#mynetworks = 192.168.0.0/24, 127.0.0.0/8
				#relay_domains =
				home_mailbox = Maildir/
			

4.1.3. OSCM 通過配置管理腳本安裝

				Postfix Install

				# Centos Init
				curl -s https://raw.githubusercontent.com/oscm/shell/master/os/centos7.sh | bash
				curl -s https://raw.githubusercontent.com/oscm/shell/master/os/selinux.sh | bash
				curl -s https://raw.githubusercontent.com/oscm/shell/master/os/iptables/iptables.sh | bash
				curl -s https://raw.githubusercontent.com/oscm/shell/master/os/ntpd/ntp.sh | bash
				curl -s https://raw.githubusercontent.com/oscm/shell/master/os/ssh/sshd_config.sh | bash

				# Install Postfix
				curl -s
				https://raw.githubusercontent.com/oscm/shell/master/mail/postfix/postfix.sh | bash