diff --git a/app/assets/javascripts/angularjs/about.js.coffee b/app/assets/javascripts/angularjs/about.js.coffee
index 1a19898..58ef59c 100644
--- a/app/assets/javascripts/angularjs/about.js.coffee
+++ b/app/assets/javascripts/angularjs/about.js.coffee
@@ -1,4 +1,4 @@
-@app.controller 'AboutController', [ '$scope', ($scope)->
+@app.controller 'AboutController', [ '$scope', '$timeout', '$http', ($scope, $timeout, $http)->
   $scope.type = null
 
   $scope.click = (v)->
@@ -8,4 +8,29 @@
     $scope.type = v
   $scope.weixin_click = ->
     $scope.weixin = !$scope.weixin
+
+  #订阅功能
+
+  $scope.email = ''
+  $scope.subscribe_success = null
+  
+  $scope.email_validate = ->
+    $scope.email.match(/@/)
+  
+  $scope.subscribe = ()->
+    $http
+      url: '/subscribes'
+      method: 'POST'
+      params:
+        email: $scope.email
+    .success (res)->
+      if res.success
+        $scope.email = ''
+        $scope.subscribe_success = true
+      else
+        $scope.subscribe_success = false
+        $scope.subscribe_fail_msg = res.message
+    $timeout ->
+      $scope.subscribe_success = null
+    , 3000
 ]
diff --git a/app/assets/javascripts/angularjs/comments.js.coffee b/app/assets/javascripts/angularjs/comments.js.coffee
index c347577..ac90e03 100644
--- a/app/assets/javascripts/angularjs/comments.js.coffee
+++ b/app/assets/javascripts/angularjs/comments.js.coffee
@@ -17,6 +17,7 @@
         $scope.comments.unshift(res.data)
       else
         $scope.publish_success = false
+        $scope.publish_fail_msg = res.message
       $timeout ->
         $scope.publish_success = null
       , 3*1000
diff --git a/app/assets/stylesheets/blogs.css.scss b/app/assets/stylesheets/blogs.css.scss
index b3a0a16..7b52622 100644
--- a/app/assets/stylesheets/blogs.css.scss
+++ b/app/assets/stylesheets/blogs.css.scss
@@ -102,4 +102,14 @@
   .rss-subscribe {
     margin-top: 0.5rem;
   }
+
+  .subscribe-success {
+    margin-left: 1rem;
+    color: green;
+  }
+
+  .subscribe-fail {
+    margin-left: 1rem;
+    color: red;
+  }
 }
diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
index 840f8d5..a41ca44 100644
--- a/app/controllers/comments_controller.rb
+++ b/app/controllers/comments_controller.rb
@@ -14,7 +14,7 @@ class CommentsController < ApplicationController
     if comment.save
       render :json=> { success: true, data: build_json(comment) }
     else
-      render :json=> { success: false }
+      render :json=> { success: false, message: comment.errors.full_messages.join(", ") }
     end
   end
 
diff --git a/app/controllers/subscribes_controller.rb b/app/controllers/subscribes_controller.rb
new file mode 100644
index 0000000..d715002
--- /dev/null
+++ b/app/controllers/subscribes_controller.rb
@@ -0,0 +1,21 @@
+class SubscribesController < ApplicationController
+  def create
+    subscribe = Subscribe.find_or_initialize_by(email: params[:email])
+    subscribe.enable = true
+
+    if subscribe.save
+      render :json => { success: true }
+    else
+      render :json => { success: false, message: subscribe.errors.full_messages.join(", ")}
+    end
+  end
+
+  def destroy
+    if subscribe = Subscribe.where(email: params[:email]).first
+      subscribe.enable = false
+      subscribe.save
+    end
+
+    render :json => { success: true }
+  end
+end
diff --git a/app/models/comment.rb b/app/models/comment.rb
index 3d8377c..1ef6522 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -9,7 +9,7 @@ class Comment
   belongs_to :post
 
   validates :name, presence: true
-  validates :email, presence: true,:format => /@/
+  validates :email, presence: true, format: { with: /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i, message: '地址无效' }
   validates :content, presence: true
   validates_presence_of :post_id
 
diff --git a/app/models/subscribe.rb b/app/models/subscribe.rb
index 643dda0..7ce6ade 100644
--- a/app/models/subscribe.rb
+++ b/app/models/subscribe.rb
@@ -3,7 +3,7 @@ class Subscribe
   field :email, type: String
   field :enable, type: Mongoid::Boolean, default: true
 
-  validates :email, presence: true, uniqueness: true, format: /@/
+  validates :email, presence: true, uniqueness: true, format: { with: /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i, message: '地址无效' }
 
   def self.subscribe_list
     Subscribe.all.where(enable: true).map(&:email).join(";")
diff --git a/app/views/blogs/_comment.html.slim b/app/views/blogs/_comment.html.slim
index 4953189..42c33fd 100644
--- a/app/views/blogs/_comment.html.slim
+++ b/app/views/blogs/_comment.html.slim
@@ -10,7 +10,7 @@
           = text_field_tag(:email, nil, placeholder: '你的邮箱', 'ng-model'=> 'email', 'ng-pattern'=>"/^.+@.+$/", 'ng-required'=>"true")
       button ng-click="submit()" ng-disabled="form.$invalid" 发表
       p.comment-success ng-show="publish_success" 发布成功
-      p.comment-fail ng-show="publish_success == false" 发布失败
+      p.comment-fail ng-show="publish_success == false" 发布失败: {{ publish_fail_msg }}
     .comment-diag ng-cloak=""
       .comment-wrapper ng-repeat=" comment in comments "
         p.name
diff --git a/app/views/blogs/index.html.slim b/app/views/blogs/index.html.slim
index 71c1a77..58a2037 100644
--- a/app/views/blogs/index.html.slim
+++ b/app/views/blogs/index.html.slim
@@ -45,7 +45,10 @@
         li
           = link_to '邮件订阅 ', '', "ng-click"=>"click('email')"
           .email-subscribe ng-show="type == 'email'"
-            = text_field_tag 'email', nil, placeholder: 'your@email.com'
+            = text_field_tag 'email', nil, placeholder: 'your@email.com', 'ng-model'=>'email'
+            button.small ng-click="subscribe()" ng-disabled="! email_validate()" 订阅
+            span.subscribe-success ng-show="subscribe_success" 订阅成功
+            span.subscribe-fail ng-show="subscribe_success == false" {{subscribe_fail_msg}}
       li
         = link_to '微信扫一扫', '', "ng-click"=>"click('weixin')"
         .weixin-subscribe ng-show="type == 'weixin'"
diff --git a/app/views/subscribes/create.html.slim b/app/views/subscribes/create.html.slim
new file mode 100644
index 0000000..49d3678
--- /dev/null
+++ b/app/views/subscribes/create.html.slim
@@ -0,0 +1,2 @@
+h1 Subscribes#create
+p Find me in app/views/subscribes/create.html.slim
diff --git a/app/views/subscribes/destroy.html.slim b/app/views/subscribes/destroy.html.slim
new file mode 100644
index 0000000..1e2d50c
--- /dev/null
+++ b/app/views/subscribes/destroy.html.slim
@@ -0,0 +1,2 @@
+h1 Subscribes#destroy
+p Find me in app/views/subscribes/destroy.html.slim
diff --git a/app/workers/new_comment_worker.rb b/app/workers/new_comment_worker.rb
index f7d68e8..43baddf 100644
--- a/app/workers/new_comment_worker.rb
+++ b/app/workers/new_comment_worker.rb
@@ -1,6 +1,10 @@
 class NewCommentWorker
   include Sidekiq::Worker
 
+  sidekiq_retry_in do |count|
+    3
+  end
+
   def perform(name, content, title, to)
     logger.info "[mail] new comment mail: name=#{name}, content=#{content}, title=#{title}, to=#{to}"
     response = send_mail(name, content, title, to)
diff --git a/app/workers/new_post_worker.rb b/app/workers/new_post_worker.rb
index 1abb5e7..1384723 100644
--- a/app/workers/new_post_worker.rb
+++ b/app/workers/new_post_worker.rb
@@ -1,6 +1,10 @@
 class NewPostWorker
   include Sidekiq::Worker
 
+  sidekiq_retry_in do |count|
+    3
+  end
+
   def perform(title, to)
     logger.info "[mail] new post mail: title=#{title}, to=#{to}"
     response = send_mail(title, to)
diff --git a/config/routes.rb b/config/routes.rb
index 46fc2ad..31f80f8 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -15,6 +15,7 @@ WBlog::Application.routes.draw do
 
 
   resources :archives
+  resources :subscribes
   # photos
   resources :photos, only: [:create]
   get '/qrcodes' => 'qrcodes#show'
diff --git a/spec/controllers/subscribes_controller_spec.rb b/spec/controllers/subscribes_controller_spec.rb
new file mode 100644
index 0000000..6774e60
--- /dev/null
+++ b/spec/controllers/subscribes_controller_spec.rb
@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe SubscribesController do
+
+  describe "POST 'create'" do
+    it "post ok" do
+      post 'create', email: 'a@b'
+      expect(JSON.parse(response.body)['success']).to be_true
+      expect(Subscribe.all.size).to eq(1)
+    end
+
+    it "post with disabled email" do
+      subscribe = Subscribe.create(email: 'a@b', enable: false)
+      post 'create', email: 'a@b'
+      expect(JSON.parse(response.body)['success']).to be_true
+      expect(subscribe.reload.enable).to be_true
+    end
+  end
+
+end
diff --git a/spec/models/subscribe_spec.rb b/spec/models/subscribe_spec.rb
index 84ac295..ef71aa8 100644
--- a/spec/models/subscribe_spec.rb
+++ b/spec/models/subscribe_spec.rb
@@ -11,13 +11,13 @@ describe Subscribe do
   end
 
   it "default is true" do
-    subscribe = Subscribe.create(email: 'a@b')
+    subscribe = Subscribe.create(email: 'tester@test.com')
     expect(subscribe.enable).to be_true
   end
 
   it "subscribe_list" do
-    subscribe = Subscribe.create(email: 'a@b')
-    subscribe = Subscribe.create(email: 'a1@b')
+    subscribe = Subscribe.create(email: 'tester@test.com')
+    subscribe = Subscribe.create(email: 'tester1@test.com')
     expect(Subscribe.subscribe_list.split(';').size).to eq(2)
   end
 end