Value not getting bind in the Magento controller -

this predefined post function inside magento controller.

public function postaction() {     $post = $this->getrequest()->getpost();       if ( $post ) {         $translate = mage::getsingleton('core/translate');         /* @var $translate mage_core_model_translate */         $translate->settranslateinline(false);         try {             $postobject = new varien_object();             $postobject->setdata($post);              $error = false;              if (!zend_validate::is(trim($post['name']) , 'notempty')) {                 $error = true;             }              if (!zend_validate::is(trim($post['comment']) , 'notempty')) {                 //$error = true; //orignal code                   $error = false;              }              if (!zend_validate::is(trim($post['email']), 'emailaddress')) {                 $error = true;             }             mage::log($post['producturl']);             if (!zend_validate::is(trim($post['producturl']) , 'notempty')) {                 $error = true;             }              //if (zend_validate::is(trim($post['hideit']), 'notempty')) {               //  $error = true;             //}             mage::log($error);              mage::log($postobject);             if ($error) {                 throw new exception();             }             $mailtemplate = mage::getmodel('core/email_template');             /* @var $mailtemplate mage_core_model_email_template */             $mailtemplate->setdesignconfig(array('area' => 'frontend'))                 ->setreplyto($post['email'])                 ->sendtransactional(                     mage::getstoreconfig(self::xml_path_email_template),                     mage::getstoreconfig(self::xml_path_email_sender),                     mage::getstoreconfig(self::xml_path_email_recipient),                     null,                     array('data' => $postobject)                 );              if (!$mailtemplate->getsentsuccess()) {                 throw new exception();             }              $translate->settranslateinline(true);              mage::getsingleton('customer/session')->addsuccess(mage::helper('contacts')->__('your inquiry submitted , responded possible. thank contacting us.'));             $this->_redirect('');              return;         } catch (exception $e) {             $translate->settranslateinline(true);              mage::getsingleton('customer/session')->adderror(mage::helper('contacts')->__('unable submit request. please, try again later'));             $this->_redirect('*/*/');             return;         }      } else {         $this->_redirect('*/*/');     } } 

when log producturl attribute, prints correct view.but not value in email. how value binded gets send email?

my form looks this:

<form action="<?php echo $this->geturl('contacts/index/post'); ?>" id="contactform" method="post"> <div class="row">         <div class="col-sm-12">             <!--<label for="name" class="required"><em>*</em><?php echo mage::helper('contacts')->__('name') ?></label>-->             <div class="input-box">                 <input name="name" id="name" placeholder="name*" title="<em>*</em><?php echo mage::helper('contacts')->__('name') ?>" value="<?php echo $this->escapehtml($this->helper('contacts')->getusername()) ?>" class="input-text required-entry" type="text" />             </div>         </div>         <div class="col-sm-12">             <!--<label for="email" class="required"><em>*</em><?php echo mage::helper('contacts')->__('email') ?></label>-->             <div class="input-box">                 <input name="email" id="email"  placeholder="email*" title="<?php echo mage::helper('contacts')->__('email') ?>" value="<?php echo $this->escapehtml($this->helper('contacts')->getuseremail()) ?>" class="input-text required-entry validate-email" type="text" />             </div>         </div>         <div class="col-sm-12">             <!--<label for="telephone" class="required"><em>*</em><?php echo mage::helper('contacts')->__('mobile') ?></label>-->             <div class="input-box">                 <input name="telephone" id="telephone" placeholder="mobile*" title="<?php echo mage::helper('contacts')->__('telephone') ?>" value="" class="input-text required-entry" type="text" />             </div>         </div>          <div class="col-sm-12">              <div class="input-box">                 <input name="producturl" id="producturl" placeholder="product url*" title="<?php echo mage::helper('contacts')->__('producturl') ?>" value="url hai bhai" class="input-text required-entry" type="text" />             </div>         </div>     </div>     <div class="row">         <div class="col-sm-12">             <!--<label for="comment" class=""><?php echo mage::helper('contacts')->__('comment') ?></label>-->             <div class="input-box input-textarea">                 <textarea name="comment" id="comment" rows="3" placeholder="message" title="<?php echo mage::helper('contacts')->__('comment') ?>" class=" input-text" placeholder="<?php echo mage::helper('contacts')->__('comment') ?>" style="width: 100%; height: 15%;resize:none;"></textarea>             </div>         </div>     </div>      <div class="row" style="text-align: center">         <div class="col-sm-12" style="padding-top:2%">             <input type="text" name="hideit" id="hideit" value="url hai bhai" style="display:none !important;" />             <button type="submit" title="<?php echo mage::helper('contacts')->__('submit') ?>" class="button"><span><span><?php echo mage::helper('contacts')->__('book designer') ?></span></span></button>         </div> </div> </div>      </div> 

so, emails templates html files can find in folder app/locale/[some_locale]/template/ if locale english of some_locale en_us, if french belgium, fr_be, language code on 2 letter defined iso 639-1 underscore _ , country code defined iso 3166-1 alpha-2.

and name of file find if global search on handle of template stated in comment.

so here contacts_email_email_template defined in app/code/core/mage/contacts/etc/config.xml being file contact_form.html :

<template>     <email>         <contacts_email_email_template translate="label" module="contacts">             <label>contact form</label>             <file>contact_form.html</file>             <type>text</type>         </contacts_email_email_template>     </email> </template> 

so if go , edit app/locale/en_us/template/email/contact_form.html reproduced here bellow , in added product url value, should work :

<!--@subject contact form@--> <!--@vars {"var data.name":"sender name", "var data.email":"sender email", "var data.telephone":"sender telephone", "var data.comment":"comment"} @--> name: {{var data.name}} email: {{var data.email}} telephone: {{var data.telephone}}  comment: {{var data.comment}} <!-- bellow line after --> product url : {{var data.producturl}} 

data, being key of array passing fifth argument of function sendtransactional