{
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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