750 million + email addresses verify job


I have 750 million( in 5 files) worldwide email list i need to verify it .

after remove duplicates

Check whether the email are working

there are 5 files, please verify seperatedly.

Skills: Bulk Marketing, Data Processing, Internet Marketing, Leads, Marketing

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About the Employer:
( 19 reviews ) shenzhen, China

Project ID: #951725