Possible to find plain text emails and wrap them into a tag?

Hello! Thank you for the plugin, I use it extensively.

On one of my sites there’s a custom field designed for all sorts of contact information, optionally including emails. These emails as the client is not very tech savvy will be most certainly put a plain text, without <a href="mailto:"> tag. Therefore the question, is it possible to automatically find such emails in given text (for example, with eae_encode_emails function), wrap them in a tags and then apply obfuscation. This is how it could work, on a simple text string:

$contactstext = get_post_meta($post->ID, 'contactstext', true);
if ($contactstext) {echo '<div class="contactstext">'.eae_encode_emails($contactstext).'</div>';}