Mage::app()->getRequest()->getParam('email') in template .phtml not work
Can you provide more information please?
Additionally, I'd recommend creating a custom block to handle this logic. Your block could have a method: getEmail() which would simply return: $this->getRequest()->getParam('email'). If you're unsure on how to do this, this post should help: http://www.gpmd.co.uk/blog/beginners-guide-to-setting-up-a-basic-custom-block-module-in-magento/