emailvalidation
An email validation module using the emailvalidator.co API. This does more than just check syntax, this module actually validates whether the mailbox is active.
Emailvalidator.co has 4-levels of verification:
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Level 1: The API checks for syntax issues and whether the domain belongs to any disposable email domain such as yopmail, mailinator, etc.
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Level 2: The API checks for all the above plus if the domain name is valid, and whether the domain has hosted email servers to accept emails.
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Level 3: The API checks whether the mailbox actually exists along with the above.
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Level 4: The API checks whether the email server has a catch-all account.
You can signup for an account at emailvalidator.co
Installation
npm install emailvalidation --save