更改日志15电子邮件概念和过程工作流16电子邮件协议16 SMTP 16 POP3 17 IMAP 17 HTTP和HTTPS 17客户服务器连接SMTP 17 MTA 18 MTA 18 MUA 18 MUA 18连接方向性与电子邮件方向性18 DNS DNS在电子邮件交付中的作用18 dns在电子邮件交付中的角色 23 Advanced delivery features 23 Antispam techniques 24 Order of execution 26 FortiMail operation modes 31 Gateway mode 32 Transparent mode 32 Server mode 32 FortiMail high availability 33 FortiMail management methods 33 Basic mode versus advanced mode 33 Setting up the FortiMail system 34 Connecting to the GUI or CLI 34 Connecting to the FortiMail GUI for the first time 34 Connecting to the FortiMail CLI for the first time 36 Local console connection and初始配置36通过网络(SSH或TELNET)启用CLI 38 38使用SSH 39使用Telnet 40连接到CLI连接CLI 40从CLI控制台41登录,使用前面板的控制按钮和LCD的LCD lcd的lcd and LCD显示操作模式41 Deploting guipertical Mode 41 traperiation 41特征42特征42特征42特征42特征42特征