On line 67 of 'components/com_k2/models/item.php' the replace the line under the comment "//Email link" with the following
| Code: |
| $item->link = rtrim(JURI::base(),'/').$item->link; $item->emailLink = JRoute::_('index.php?option=com_mailto&tmpl=component&link='.base64_encode($item->link)); |
This corrects not only the email link but also the twitter and social links that use the same variable ($item->link or $this->item ->link).
For those of you who don't feel like editing code yourself, I've included the patched file as an attachment below. Just download and extract into your base Joomla directory.