diff --git a/lib/email_validator.rb b/lib/email_validator.rb
new file mode 100644
index 0000000..0a67ebc
--- /dev/null
+++ b/lib/email_validator.rb
@@ -0,0 +1,21 @@
+# Based on https://github.com/balexand/email_validator
+# 
+# Extended to use only strict mode with following allowed characters:
+# ' - apostrophe
+#
+# See http://www.remote.org/jochen/mail/info/chars.html
+#
+class EmailValidator < ActiveModel::EachValidator
+  @@default_options = {}
+
+  def self.default_options
+    @@default_options
+  end
+
+  def validate_each(record, attribute, value)
+    options = @@default_options.merge(self.options)
+    unless value =~ /\A\s*([-a-z0-9+._']{1,64})@((?:[-a-z0-9]+\.)+[a-z]{2,})\s*\z/i
+      record.errors.add(attribute, options[:message] || :invalid)
+    end
+  end
+end
diff --git a/lib/gitlab/email_validator.rb b/lib/gitlab/email_validator.rb
deleted file mode 100644
index 0a67ebc..0000000
--- a/lib/gitlab/email_validator.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-# Based on https://github.com/balexand/email_validator
-# 
-# Extended to use only strict mode with following allowed characters:
-# ' - apostrophe
-#
-# See http://www.remote.org/jochen/mail/info/chars.html
-#
-class EmailValidator < ActiveModel::EachValidator
-  @@default_options = {}
-
-  def self.default_options
-    @@default_options
-  end
-
-  def validate_each(record, attribute, value)
-    options = @@default_options.merge(self.options)
-    unless value =~ /\A\s*([-a-z0-9+._']{1,64})@((?:[-a-z0-9]+\.)+[a-z]{2,})\s*\z/i
-      record.errors.add(attribute, options[:message] || :invalid)
-    end
-  end
-end
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 34a5bcf..4e0ebb5 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -83,11 +83,17 @@ describe User do
         user = build(:user, email: 'info@example.com')
         expect(user).to be_valid
       end
+
       it 'accepts info+test@example.com' do
         user = build(:user, email: 'info+test@example.com')
         expect(user).to be_valid
       end
 
+      it "accepts o'reilly@example.com" do
+        user = build(:user, email: "o'reilly@example.com")
+        expect(user).to be_valid
+      end
+
       it 'rejects test@test@example.com' do
         user = build(:user, email: 'test@test@example.com')
         expect(user).to be_invalid
@@ -97,6 +103,11 @@ describe User do
         user = build(:user, email: 'mailto:test@example.com')
         expect(user).to be_invalid
       end
+
+      it "rejects lol!'+=?><#$%^&*()@gmail.com" do
+        user = build(:user, email: "lol!'+=?><#$%^&*()@gmail.com")
+        expect(user).to be_invalid
+      end
     end
   end
 
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libgit2 0.21.2