[WINDOWS] Gallery3 Ecard Module sending emails under Windows is not working

Hello,
Hoping that anyone can advise, I appreciate it's not supported ! but thought I would ask anyway.
I have everything working under Windows 2008 R2 on IIS7, with PHP and MySQL. Most of the modules all work well apart from the email related ones. I am trying to figure out how to get the ecard module functioning without success. I have tested the Email notifcation 'password reset' which does work because I have setup PHP already with acces to my relay. Can anyone share some configuration tips to get this module functioning.

Basically I am looking to be able to send a resized image in an email from within the application. Thanks.

The error message I receive in the php log is

2012-01-28 20:31:15 +00:00 --- error: Exception [ 0 ]: @todo SEND_MAIL_FAILED
C:\inetpub\wwwroot\gallery\modules\gallery\libraries\Sendmail.php [ 90 ]
#0 C:\inetpub\wwwroot\gallery\modules\ecard\controllers\ecard.php(119): Sendmail_Core->send()
#1 C:\inetpub\wwwroot\gallery\modules\ecard\controllers\ecard.php(80): Ecard_Controller::_notify('mynamehere@domain.com....', 'Gallery Adminis...', 'Arci...', Object(Item_Model), '--=_9ee058561b8...', Array, '', NULL)
#2 [internal function]: Ecard_Controller->send('98')
#3 C:\inetpub\wwwroot\gallery\system\core\Kohana.php(331): ReflectionMethod->invokeArgs(Object(Ecard_Controller), Array)
#4 [internal function]: Kohana_Core::instance(NULL)
#5 C:\inetpub\wwwroot\gallery\system\core\Event.php(208): call_user_func_array(Array, Array)
#6 C:\inetpub\wwwroot\gallery\application\Bootstrap.php(67): Event_Core::run('system.execute')
#7 C:\inetpub\wwwroot\gallery\index.php(102): require('C:\inetpub\wwwr...')
#8 {main}