No subject

Attached is the script I use. 
You need to change the "From" address to your domain.
You may also need to change the content-type. I hard coded
"text/plain"
because that works for text and html attachments.

#!/bin/ksh
# attachmail by john julian Feb 26, 2002
Syntax='syntax: attachmail -a "attachmentname" -r "returnaddress" [ -s
"subject" ] 
   [ -m "message" ] recipient'

TempFile="/tmp/attachmail$$"

# get the command line args
while [ -n "$1" ]
do
  case "$1" in
    "-a" ) if [ -f "$2" ]
           then
             Attachment="$2"
             shift 2
           else
             print "ERROR no attachment file"
             exit
           fi;;
    "-r" ) From="$2"
           shift 2
           ;;
    "-s" ) Subject="$2"
           shift 2
           ;;
    "-m" ) Message="$2"
           shift 2
           ;;
    *    ) Recipient="$Recipient $1"
           shift
           ;;
  esac
done

if [[ $Recipient != *@* ]]
then
  print "ERROR invalid email address: $Recipient"
  print "$Syntax"
  exit
fi

if [ -z "$From" ]
then
  From="$( whoami )@sbc.com"
fi

# put the headers in a temp file
print "Mime-Version: 1.0
To: $Recipient
Subject: $Subject
Content-Type: multipart/mixed; boundary=boundarystring
--boundarystring
Content-Type: text/plain
" > $TempFile

# if we have a message then add it to temp file
if [ -n "$Message" ]
then 
  print -- "$Message" >> $TempFile
fi

# add the attachment header
print -- "--boundarystring
Content-Type: text/plain
Content-Disposition: attachment; filename=$Attachment\n" >> $TempFile

# now the file itself
cat "$Attachment" >> $TempFile

print -- "--boundarystring--" >> $TempFile

/usr/lib/sendmail -f "$From" -t < $TempFile
/bin/rm $TempFile

-------------------------------------------------------------------------------