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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@chollian.net
abc@kepco.co.kr
abc@lycos.co.kr
abc@joongang.co.kr
abc@hanmail.net
abc@chollian.net
abc@hanmail.net
abc@chollian.net
abc@hanmail.net
abc@hanmail.net
abc@lycos.co.kr
abc@kast.or.kr
abc@paxnet.co.kr
abc@hanmail.net
abc@chollian.net
abc@aatex.com
abc@dreamwiz.com
abc@hanmail.net
abc@cse.co.kr
abc@kma.go.kr