sSMTP
sSMTP - Simple SMTP
sSMTP is a simple MTA to deliver mail from a computer to a mail hub (SMTP server). sSMTP is simple and lightweight, there are no daemons or anything hogging up CPU; Just sSMTP. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue.
Setting up
/etc/ssmtp/ssmtp.conf
# For My SMTP relay server
AuthUser=alang@domain.com
AuthPass=ThisIsPassword
FromLineOverride=YES
mailhub=smtp.domain.com:587
UseSTARTTLS=YES
如何自訂 sender 的位址
修改 /etc/ssmtp/ssmtp.conf
FromLineOverride=NO
root=win.mis03
修改 /etc/ssmtp/revaliases
root:win.mis03@msa.hinet.net
發信測試
方法一: 使用 ssmtp
$> ssmtp alang.hsu@gmail.com
To: alang.hsu@gmail.com
From: sender@domain.com
Subject: Test Mail
Hello, World
<Ctrl-D to Exit>
方法二: 使用 mail
echo "Hello, World" | mail -s "Test Mail"
NOTE:
使用方法一時,From 必須輸入一個有效的郵件地址。
使用方法二有可能會寄不出去,原因是 sender 的郵件地址不是一個有效的位址。參考自訂 sender 位址的步驟。
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