Adding extra line-breaks to emails that are sent from admin

Hi,
I want to put some newline characters in between the "greeting", "message body" and "footer" of the emails I send from Admin.
At this point of time they look like this :

Dear Anvita Trivedi
Greetings from Bambino !! We have launched our Clearance Section. The prices have hit the bottom. Look for yourself - Sale's on till July 30th ONLY, Shop NOW Team Bambino.
Copyright (c) 2014 Bambino. Powered by Zen Cart
nThis email address was given to us by you or by one of our customers. If you feel that you have received this email in error, please send an email to***
This e-mail is sent in accordance with the Law in effect 01/01/2004. Removal requests can be sent to this address and will be honored and respected.

How can I do this ?
Thanks