### Alternative #1 is the plain text:
	my $plain = $msg->attach(Type => 'text/plain',
							 Path => 'letter.txt');

    ### Alternative #2 is the HTML-with-content:
	my $fancy = $msg->attach(Type => 'multipart/related');
	$fancy->attach(Type => 'text/html',
				   Path => 'letter.html');
	$fancy->attach(Type => 'image/gif',
				   Path => 'watermark.gif',
				   Id   => 'watermark');
	$fancy->attach(Type => 'image/png',
				   Path => 'letterhead.png',
				   Id   => 'letterhead');
	$fancy->attach(Type => 'image/png',
				   Path => 'signatures.png',
				   Id   => 'signatures');

	my $form = $fancy->attach(Type => 'application/pdf',
						   Path => 'NAACP-SponsorshipLTR.pdf',
						   Disposition => 'attachment');