diff --git a/app/models/comment.rb b/app/models/comment.rb
index 49be5e4..9925666 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -11,7 +11,7 @@ class Comment < ApplicationRecord
   end
 
   after_commit on: :create do
-    if ENV['MAIL_SERVER'].present? && ENV['ADMIN_USER'].present? && ENV['ADMIN_USER'] =~ /@/
+    if ENV['MAIL_SERVER'].present? && ENV['ADMIN_USER'].present? && ENV['ADMIN_USER'] =~ /@/ && ENV['ADMIN_USER'] != self.email
       Rails.logger.info 'comment created, comment worker start'
       NewCommentWorker.perform_async(self.id.to_s, ENV['ADMIN_USER'])
     end
diff --git a/app/views/subscribes/new.html.slim b/app/views/subscribes/new.html.slim
index c49cf85..f75c141 100644
--- a/app/views/subscribes/new.html.slim
+++ b/app/views/subscribes/new.html.slim
@@ -4,4 +4,4 @@
 
     = simple_form_for @subscribe do |f|
       = f.input :email
-      = f.button :submit
+      = f.button :submit, value: '订阅', data: { 'disable-with'=> '订阅中...' }
diff --git a/app/views/unsubscribes/new.html.slim b/app/views/unsubscribes/new.html.slim
index 5306e74..3c94e6a 100644
--- a/app/views/unsubscribes/new.html.slim
+++ b/app/views/unsubscribes/new.html.slim
@@ -6,4 +6,4 @@
       .row
         .small-12.large-6.columns
           = f.input :email, placeholder: 'your@email.com'
-      = f.submit
+      = f.button :submit, value: '退订', data: { 'disable-with'=> '退订中...' }