EmailChecker

Simple library checking the validity of an email. Checks are performed in the following order:

REGEX: validate the emails has a good looking format
MX: validate the domain sever contains MX records
SMTP: validate the SMTP behind the MX records knows this email address (no email sent)

:warning: That's rare but, some SMTP define a catchall email address. Meaning all emails using this domain seems valid even if they are not.

Installation

# mix.exs
def application do
  [mod: {YourModule, []},
   applications: [..., email_checker, ...]
  ]
end

def deps do
  [
    # otherdependecies...
    {:email_checker, "~> 0.0.2"}
    # other dependencies...
  ]
end

Configuration

We need to manually load DNS records to validate if a MX exists or not. When we load the library Erlang doesn't have its DNS record list yet. So to avoid any problem, we define a default DNS. By default the value is : 4.2.2.1.

You can easily overide this value:

# config/config.exs
config: :email_checker, default_dns: {4.2.2.1}

Usage

EmailChecker.valid?("kevin@disneur.me")
#=> true
EmailChecker.valid?("non-existing@disneur.me")
#=> false

CHANGELOG

LICENSE

MIT