mailgun-validate-email

Super tiny wrapper of email validation API from Mailgun, useful in form validation. This can be most useful in form validation to avoid those pesky spam emails.

Disclaimer

This module uses a third party service from Mailgun to verify the validity of the email, you can read all the info in their API docs
Emails are securely transmitted using Public Key Cryptography

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Usage

npm install mailgun-validate-email --save

var validator = require('mailgun-validate-email')('INSERT-YOUR-MAILGUN-PUBKEY-HERE')
validator("[email protected]", function (err, result){
  if(err) {
    // email was not valid
  } else {
    console.log(result);
    // register the person for your service etc.
  }
})

Output will be something like

{
  is_valid: true,
  parts: {
    local_part: banana,
    domain: papaia.com,
    display_name: null
  },
  address: '[email protected]',
  did_you_mean: null
}

Why use Third-Party Email Validation?

There are easier ways of checking if an email conforms to the correct format e.g: using Joi Joi.string().email()
But a validation library only checks that the address "looks" valid, the Mailgun API actually checks if the domain has a valid DNS mx record (checking if the domain accepts emails).

This means you don't waste time (or money) sending emails to [email protected]
(valid email address which will fail to deliver and thus clog up your inbox with failure reports!)

Note: this will not prevent people from registering with your service/app using a real email they don't control.
e.g: [email protected] ...
so you should still get people to confirm their email address by sending them an email with a unique token.
(this will prevent people registering as someone else)

License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.