Customizable email used to send ecard

This is a feature request for a customizable email used to send ecard. This would be handy when the ecard recipients reply to the ecard. But you don't want the reply to go to the site email address. But instead to another customizable email address.

Expected result

• Under the page admin/settings/ecard Create a new field title This email used to send emails:* For example the ecard email address ecard@mydomainnamehere.com could be used. Find below screenshot to clarify location (ecard-settings.png).
• Under the page admin/settings/site-information. The field E-mail address: would not be use by ecard module. For example the site email address siteadministrator@mydomainnamehere.com could be type in this field. Find below screenshot to clarify location (site-information-settings_0.png).
• When visitor send a ecard the receipient would receive a ecard from ecard@mydomainnamehere.com.

I would be happy to contribute testing and update documentation.

*Note that in ecard version 6.x-1.6 there is already a field This email used to send emails: on this page. But it isn't use anywhere. Related issue http://drupal.org/node/592508