diff --git a/Gemfile b/Gemfile
index 037c606c8..f59c92077 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,7 +20,7 @@ gem "builder", "3.0.0"
 gem 'acts-as-taggable-on', '2.4.1'
 gem 'spreadsheet'
 gem 'ruby-ole'
-#gem 'email_verifier', path: 'lib/email_verifier'
+gem 'email_verifier', path: 'lib/email_verifier'
 
 group :development do
   gem 'grape-swagger'
diff --git a/Gemfile.lock b/Gemfile.lock
index 355ca422d..8c5816e13 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,6 +12,13 @@ PATH
       coderay (>= 1.0.0)
       erubis (>= 2.6.6)
 
+PATH
+  remote: lib/email_verifier
+  specs:
+    email_verifier (0.0.7)
+      dnsruby (>= 1.5)
+      rails (>= 3.0.0)
+
 PATH
   remote: lib/rack-mini-profiler
   specs:
@@ -91,6 +98,7 @@ GEM
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.2.5)
+    dnsruby (1.57.0)
     equalizer (0.0.9)
     erubis (2.7.0)
     execjs (2.2.1)
@@ -315,6 +323,7 @@ DEPENDENCIES
   capybara (~> 2.4.1)
   coderay (~> 1.0.6)
   coffee-rails (~> 3.2.1)
+  email_verifier!
   factory_girl (~> 4.4.0)
   faker
   fastercsv (~> 1.5.0)
diff --git a/app/models/user.rb b/app/models/user.rb
index 06f59c764..bef65fe54 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -188,7 +188,7 @@ class User < Principal
   validates_confirmation_of :password, :allow_nil => true
   validates_inclusion_of :mail_notification, :in => MAIL_NOTIFICATION_OPTIONS.collect(&:first), :allow_blank => true
   validate :validate_password_length
-  #validates_email_realness_of :mail
+  validates_email_realness_of :mail
   before_create :set_mail_notification
   before_save   :update_hashed_password
   before_destroy :remove_references_before_destroy
diff --git a/config/application.rb b/config/application.rb
index c7f2f3ea5..647675784 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -17,9 +17,9 @@ module RedmineApp
     # -- all .rb files in that directory are automatically loaded.
 
     #verifier if email is real
-    # EmailVerifier.config do |config|
-    #   config.verifier_email = "lizanle521@126.com"
-    # end
+    EmailVerifier.config do |config|
+      config.verifier_email = "alanlong9278@126.com"
+    end
 
     config.generators do |g|
          g.test_framework :rspec,