EmailParser

Ruby gem for parsing or validating email address. Parsing email address based on RFC5321 and RFC1035. But some violations are allowed by option.

Installation

Add this line to your application's Gemfile:

gem 'email_parser'

And then execute:

$ bundle

Or install it yourself as:

$ gem install email_parser

Usage

EmailParser.parse("test@example.com")
# => [:mailbox, [:local_part, [:dot_string, [:atom, "test"]]], "@", [:domain, [:subdomain, [:label, "example"], [:dot, "."], [:label, "com"]]]]

EmailParser.valid?("test@example.com") # => true

EmailParser.valid?("test.@example.com") # => false
EmailParser.valid?("test.@example.com", allow_local_end_with_dot: true) # => true

Parser options

• allow_address_literal: true allows a@[127.0.0.1] etc. (default: false)
• allow_domain_label_begin_with_number: true allows a@123.com etc.
• allow_dot_sequence_in_local: true allows a..b@example.com etc. (default: false)
• allow_local_begin_with_dot: true allows .a@example.com etc. (default: false)
• allow_local_end_with_dot: true allows a.@example.com etc. (default: false)

Use as ActiveModel validator

gem "email_parser", require: "email_parser/validator"

class Person
  # All parser options and :allow_nil option are accepted.
  validates :email, email: {allow_nil: true, allow_local_end_with_dot: true}
end

You can set default parser options globally.

EmailValidator.default_parser_options.merge!(
  allow_local_end_with_dot: true,
)

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/labocho/email_parser.

License

The gem is available as open source under the terms of the MIT License.