Email Verifier

Helper validation utility for checking whether given email address is real or not. Many times as developers we've put in our models statements for checking email address format. This gem will complete your existing setups with validator that actually connects with given mail server and asks if given email address exists for real.


Add this line to your application's Gemfile:

gem 'email_verifier'

And then execute:

$ bundle

Or install it yourself as:

$ gem install email_verifier


To get info about realness of given email address, email_verifier connects with mail server that email's domain points to and pretends to send an email.

Some stmp servers will not allow you to do this if you will not present yourself as some real user. So first thing you'd need to set up is to put something like this either in initializer or in application.rb file:

EmailVerifier.config do |config|
  config.verifier_email = "[email protected]"

Then just put this in your model e. g:

validates_email_realness_of :email

Or - if you'd like to use it outside of your models:


This method will return true or false, or - will throw exception with nicely detailed info about what's wrong.

Still Rails 3+ only but compatibility with anything in the pipeline.


End Point Corporation

Email Verifier is maintained and funded by End Point Corporation

Please send questions to [email protected]


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request