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A Clean email address is an address which has been identified as an active email address with a very good email deliverability history.

How we identify an email address as clean?
Any email address which got scores upwards of 7 out of 10 by our algorithm (LCXv1.143- patent pending) is treated as clean.

Note: These are internal scoring, and not visible on the application.

What is this LCXv1.143 all about? This is a complex algorithm which not only checks the basic validation parameters like;

  • a proper MX record
  • is the email address a spam trap
  • Is the email address a disposal one?
  • Is it syntactically correct? and so on..

Apart from these, the algorithm also scans the past email delivery history on a particular email address to learn when was the last email delivered on a particular email address.

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