Calling custom dynamic Blocks in transactional emails

Question

in my transactional email page i've used this

{{block type='sales/dispatch' area='frontend' template='email/order/dispatch.phtml' order=$order shipment=$shipment}}

my block is under sales module which is like this

class Mypackage_Sales_Block_Dispatch extends Mage_Core_Block_Template {
 public function checkinout(){
 return 'testingg......';
 }
}

and my dispatch.phtml file looks like this

echo $this->checkinout();

but in the email i'm not getting this block printed, what am i doing wrong? thanks for the help

Answer 1

You can't use <sales> as a node in config.xml, this name is already used by Mage_Sales.

Rename your node and you are one step further.