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Note: 

The emails are given for an idea about domains and types of emails. The initial ID of email has been removed with (EMAIL) letters in these sample addresses 

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abc@biz-aus.net.au
abc@aapt.net.au
abc@westnet.com.au
abc@unsw.edu.au
abc@onsitedirect.net
abc@asdoo.com
abc@mailbox.uq.oz.au
abc@murdoch.edu.au
abc@unimelb.edu.au
abc@telstra.com
abc@infinite.net.au
abc@cowan.edu.au
abc@uts.edu.au
abc@trl.telstra.com.au
abc@unimelb.edu.au
abc@cqu.edu.au
abc@optusnet.com.au