My solution uses Mail::Send and sendmail only:
sub sendAttachment
{
my( $from, $to, $subject, $filename, $type, $data ) = @_;
my $boundary = '==' . time . '==';
# untaint stuff for mailing
$ENV{'PATH'} = '/bin:/usr/bin';
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};
my $msg = new Mail::Send;
$msg->to($to);
$msg->add('From',$from);
$msg->subject($subject);
$msg->add('Content-Type', qq(multipart/mixed; boundary="$boundary";
+) );
my $fh = $msg->open;
print $fh "--$boundary\n";
print $fh "Content-Disposition: attachment; filename=$filename;\n";
print $fh "Content-Type: $type; name=$filename; charset=iso-8859-1;
+\n";
print $fh "Content-Transfer-Encoding: 8bit;\n\n";
print $fh $data;
print $fh "--$boundary\n";
$fh->close;
}
Used like so:
sendAttachment(
'"Me, Here" <me@here.org>',
'user@foo.com',
'Quarterly Report - Q1 2007',
'report-q12007.csv',
'text/csv',
$data
);