Scripting SMTP with netcat

(echo EHLO $USER@$HOSTNAME sleep 1 echo MAIL FROM: $USER@$HOSTNAME sleep 1 echo RCPT TO: $EMAIL_TO sleep 1 echo “DATA From: $USER@HOSTNAME To: $EMAIL_TO Subject: $EMAIL_SUBJECT $EMAIL_DATA” sleep1 echo ‘.’ sleep 1 echo QUIT) | netcat mailserver.somewhere.org 25