spawn /usr/bin/telnet (SMTPサーバHOST名) 25 expect "220"; send "HELO\r" expect "250"; send "MAIL FROM: (アドレス)\r" expect "250"; send "RCPT TO: (アドレス)\r" expect "250"; send "DATA\r" expect "354"; send "From: (アドレス)\r" send "Subject: (Subject) \r" send "\n\r" send ".\r" send "\n\r" send "QUIT\r"
expect -f コマンドファイル