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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@uol.com.br
abc@superig.com.br
abc@uol.com.br
abc@ig.com.br
abc@uol.com.br
abc@uol.com.br
abc@terra.com.br
abc@globo.com
abc@prodigo.com.br
abc@terra.com.br
abc@globo.com
abc@terra.com.br
abc@uol.com.br
abc@hotmail.com