Which file sends email to customer

[rekhis]

Hi,

 

Which file is used to send an email to the customer once their order is accepted (with Subject: Order Process, and with details of customer's order, including their delivery & billing address) ?

 

I want to include some additional information in that email for my customers.

 

Thanks in advance

...Manjeet

[rekhis]

Found it - the file is catalog/checkout_process.php