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An email validator for Rails 3 and 4.

branch: master
README.md

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Usage

Add to your Gemfile:

gem 'email_validator'

Run:

bundle install

Then add the following to your model:

validates :my_email_attribute, :email => true

Strict mode

In order to have stricter validation (according to http://www.remote.org/jochen/mail/info/chars.html) enable strict mode. You can do this globally by adding the following to your Gemfile:

gem 'email_validator', :require => 'email_validator/strict'

Or you can do this in a specific validates call:

validates :my_email_attribute, :email => {:strict_mode => true}

Thread safety

This gem is thread safe, with one caveat: EmailValidator.default_options must be configured before use in a multi-threaded environment. If you configure default_options in a Rails initializer file, then you're good to go since initializers are run before worker threads are spawned.

Credit

Based on http://thelucid.com/2010/01/08/sexy-validation-in-edge-rails-rails-3

Regular Expression based on http://fightingforalostcause.net/misc/2006/compare-email-regex.php tests.

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