1.2B Emails on Black Friday(blog.mailchimp.com)
blog.mailchimp.com
1.2B Emails on Black Friday
http://blog.mailchimp.com/a-mailchimp-record-1-2-billion-emails-on-black-friday/
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http://blog.mailchimp.com/a-mailchimp-record-1-2-billion-emails-on-black-friday/
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