如何从命令行发送邮件

原理介绍

PowerShell

PowerShell 中内置了发送邮件的命令 Send-MailMessage ，下面的脚本把密码加密存储在文本里，这样可以不用每次输入密码，参考的是 Secure Password with PowerShell: Encrypting Credentials – Part 1

function psMail {
    param(
            [Parameter(Mandatory = $true, Position = 0)]
            [string] $to = "",
            [string] $s = "",
            [string] $b = ""
         )

        $from = "username@domain.com"
        $SMTPServer = "smtp.domain.com"
        $File = "C:\Users\video\passwd.txt"
        $mycredential = new-object -TypeName System.Management.Automation.PSCredential -ArgumentList $from,(Get-Content $File | ConvertTo-SecureString)

        Send-MailMessage -from $from -to $to -subject $s -body $b -smtpserver $SMTPServer -Credential $mycredential
}

Mutt, mailx, swaks

MTA
MDA

Telnet, mail, sendmail

SMTP命令
TLS的设置

Python

参考 Calibre 发送邮件的方法