I also have Advanced Custom Fields installed.
In Simple.php I replaced
<a href="mailto:<?php echo $email; ?>"><?php echo $email; ?></a> <br />
with
<p><a href="<?php echo eae_encode_str('mailto:'.get_field('mail')); ?>"><?php echo eae_encode_str(get_field('mail')); ?></a></p>
and it is not encoding the address.
The page is http://sidneybcdirectory.com/hagens-computers/