magento-1.9,error,email,user – Fixing Newsletter Signup Error Due to Duplicate Email in Magento 1.9

For logo:

There is an email var for that:

{{skin url="images/logo_email.gif" _area='frontend'}}

To make it your own, upload and replace logo_email.gif

For email variables:

Some of these exist by default:

General Store Email address:

{{config path="trans_email/ident_general/email"}}

Store Name:

{{config path="general/store_information/name"}}

Store Code is trickier. This is not exposed in the config to my knowledge for use by the email templates. I suggest using a custom template file, and refer this way:

{{block type="core/template" template="custom/storecode.phtml"}}

storecode.phtml:

<?php

echo Mage::app()->getStore()->getCode();

Alternatively, and maybe less-desirable, are Custom Variables.

Custom Variables

System > Custom Variable > Add New Variable

To Implement a custom variable into a Transactional Email, do the following: In the Admin Panel, select System > Transactional Emails Click the row of predefined template to edit or click [Add New Template] button to create a new one. Create a new transactional email first if needed. In the Template Content field, select a location for your custom variable. Click [ Insert Variable ] and select the Custom Variable you would like to insert.

_{Source: http://www.magentocommerce.com/knowledge-base/entry/creating-custom-variables}

Take a look at Magento Newsletter form not working

Try

{{block type="newsletter/subscribe" template="newsletter/subscribe.phtml"}}

The form need to be posted to newsletter/subscriber/new which is define in

Mage_Newsletter_Block_Subscribe

/**
 * Retrieve form action url and set "secure" param to avoid confirm
 * message when we submit form from secure page to unsecure
 *
 * @return string
 */
public function getFormActionUrl()
{
    return $this->getUrl('newsletter/subscriber/new', array('_secure' => true));
}