added trumail validator after update and implement simple email validator interaction

app/interactions/actions/contact_update.rb

@@ -15,9 +15,27 @@ module Actions
       maybe_update_statuses
       maybe_update_ident if ident.present?
       maybe_attach_legal_doc
+      maybe_change_email
       commit
     end
 
+    def maybe_change_email
+      return if Rails.env.test?
+
+      [:regex, :mx].each do |m|
+        # r = Truemail.validate(@new_attributes[:email], with: m)
+        r = Actions::SimpleMailValidator.run(email: @new_attributes[:email], level: m)
+
+        unless r.success
+          contact.add_epp_error('2306', nil, r.errors, I18n.t(:client_side_status_editing_error))
+          @error = true
+          return
+        end
+      end
+
+      true
+    end
+
     def maybe_remove_address
       return if Contact.address_processing?
 

app/interactions/actions/simple_mail_validator.rb

@@ -0,0 +1,9 @@
+module Actions
+  module SimpleMailValidator
+    extend self
+
+    def run(email:, level:)
+      Truemail.validate(email, with: level).result
+    end
+  end
+end