examplemail.sh

#!/bin/bash
boundry1=$(cat /dev/random|tr -cd '[:alnum:]'|head -c 20)
id2=$(cat /dev/random|tr -cd '[:digit:]'|head -c 20)
boundry2=$(cat /dev/random|tr -cd '[:alnum:]'|head -c 20)
sendmail -t <<EOT
FROM: This guy <[email protected]>
TO: That guy <[email protected]>
SUBJECT: Test
MIME-Version: 1.0
Content-Type: multipart/mixed;
 boundary="${boundry1}"

This is a multi-part message in MIME format.
--${boundry1}
Content-Type: multipart/related;
 boundary="${boundry2}"


--${boundry2}
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit

<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body bgcolor="#ffffff" text="#000000">
<img src="cid:${id2}" alt="">
</body>
</html>

--${boundry2}
Content-Type: image/png;
 name="diapericonblank.png"
Content-Transfer-Encoding: base64
Content-ID: <${id2}>
Content-Disposition: inline;
 filename="diapericonblank.png"

$(base64 /home/pouar/Pictures/diapericonblank.png)
--${boundry2}--

--${boundry1}
Content-Type: application/x-lzma;
 name="diapericoncde.pm.lzma"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename="diapericoncde.pm.lzma"

$(base64 /home/pouar/Pictures/diapericoncde.pm.lzma)
--${boundry1}--


EOT