This email is NOT from Bigpond.
Interestingly it seems to have been sent to the @bigpond.com email recipient using a compromised @bigpond.com user account.
The source IP address, 184.108.40.206, is in India.
If you reply to the email, your email actually goes to firstname.lastname@example.org:
w.cn is registered to Xiamen Yi Network Technology Co., Ltd.
The email that I received is dated 22 February 2012; as at 4 March 2012 they were still being seen.
The same reply to address is also being used for a Lottery Scam email.