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telnetでワンライナーでメール送信する

mail
telnet
ワンライナー

Posted at 2021-05-28

{
    sleep 0.3;
    echo 'EHLO';
    sleep 0.3;
    echo 'MAIL FROM: <送信元メールアドレス(EnvelopFrom)>';
    sleep 0.3;
    echo 'RCPT TO: <送信先メールアドレス>';
    sleep 0.3;
    echo 'DATA';
    sleep 0.3;
    echo -e 'From: <送信元メールアドレス>\n\n'
    echo -e 'Subject: This is Test Subject.\n\n'
    echo -e 'This is Test Body.\n'
    echo '.'
} | telnet localhost 25

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