Send mail using command line utility:Sendmail with html encoding and attachments

sendmail_one.sh

#!/usr/bin/ksh
# source: http://stackoverflow.com/questions/11134857/using-sendmail-for-html-body-and-binary-attachment

export MAILFROM="noreply@domain.com"
export MAILTO="mail.to@gmail.com"
export SUBJECT="Test PDF for Email"
export BODY="email_body.htm"
export ATTACH="file.pdf"
export MAILPART=`uuidgen` ## Generates Unique ID
export MAILPART_BODY=`uuidgen` ## Generates Unique ID

(
 echo "From: $MAILFROM"
 echo "To: $MAILTO"
 echo "Subject: $SUBJECT"
 echo "MIME-Version: 1.0"
 echo "Content-Type: multipart/mixed; boundary=\"$MAILPART\""
 echo ""
 echo "--$MAILPART"
 echo "Content-Type: multipart/alternative; boundary=\"$MAILPART_BODY\""
 echo ""
 echo "--$MAILPART_BODY"
 echo "Content-Type: text/plain; charset=ISO-8859-1"
 echo "You need to enable HTML option for email"
 echo "--$MAILPART_BODY"
 echo "Content-Type: text/html; charset=ISO-8859-1"
 echo "Content-Disposition: inline"
 cat $BODY
 echo "--$MAILPART_BODY--"

 echo "--$MAILPART"
 echo 'Content-Type: application/pdf; name="'$(basename $ATTACH)'"'
 echo "Content-Transfer-Encoding: uuencode"
 echo 'Content-Disposition: attachment; filename="'$(basename $ATTACH)'"'
 echo ""
 #uuencode -m $ATTACH $(basename $ATTACH)
 uuencode $ATTACH $(basename $ATTACH)
 echo "--$MAILPART--"
) > email_`date '+%Y%m%d_%H%M%S'`.out
| /usr/sbin/sendmail $MAILTO

sendmail_two.sh

#/bin/sh

# commands.
SENDMAIL=/usr/lib/sendmail
ECHO=/bin/echo
GZIP=/bin/gzip
CAT=/bin/cat
RM=/bin/rm

# attachment file info.
ATTACH_FILE=attachmail.txt
ATTACH_PATH=/tmp/$ATTACH_FILE

# mail head settings.
MAIL_BODY=/tmp/mail_body.txt
MAIL_FROM=xxx@abc.com
MAIL_TO=yyy@abc.com
MAIL_SUBJECT="TEST ATTACHMENT MAIL."
MAIL_BOUNDARY=`date +%Y%m%d%H%M%N`

# make attachment file (test data).
$ECHO "1,2,3,4,5" > $ATTACH_PATH
$ECHO "6,7,8,9,10" >> $ATTACH_PATH

# attachment compression.
cd /tmp
$GZIP $ATTACH_FILE

＃make body.
$ECHO "this is Body." > $MAIL_BODY

# send mail.
$SENDMAIL -t << EOF
From: ${MAIL_FROM}
To: ${MAIL_TO}
Subject: ${MAIL_SUBJECT}
MIME-Version: 1.0
Content-type: multipart/mixed; boundary=${MAIL_BOUNDARY}
Content-Transfer-Encoding: 7bit

--${MAIL_BOUNDARY}
Content-type: text/plain; charset=iso-2022-jp
Content-Transfer-Encoding: 7bit

`${CAT} ${MAIL_BODY}`

--${MAIL_BOUNDARY}
Content-type: application/zip;
 name=${ATTACH_FILE}.gz
Content-Transfer-Encoding: base64
Content-Disposition : attachment;
 filename=${ATTACH_FILE}.gz

`${CAT} ${ATTACH_PATH}.gz | base64`

--${MAIL_BOUNDARY}--
EOF

$RM -fr ${ATTACH_PATH}.gz