diff --git a/app/models/account_deleter.rb b/app/models/account_deleter.rb
index 56464c963..f57b01775 100644
--- a/app/models/account_deleter.rb
+++ b/app/models/account_deleter.rb
@@ -50,7 +50,7 @@ class AccountDeleter
   end
 
   def ignored_ar_user_associations
-    [:followed_tags, :invited_by, :contact_people, :applications, :aspect_memberships]
+    [:followed_tags, :invited_by, :contact_people, :applications, :aspect_memberships, :ignored_people]
   end
 
   def delete_standard_user_associations
diff --git a/app/models/comment.rb b/app/models/comment.rb
index 33446df3f..c84287055 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -33,10 +33,9 @@ class Comment < ActiveRecord::Base
   alias_attribute :post, :commentable
   belongs_to :author, :class_name => 'Person'
 
-  validates :text, :presence => true, :length => { :maximum => 2500 }
+  validates :text, :presence => true, :length => {:maximum => 2500}
   validates :parent, :presence => true #should be in relayable (pending on fixing Message)
 
-
   scope :including_author, includes(:author => :profile)
   scope :for_a_stream, including_author.merge(order('created_at ASC'))
 
diff --git a/app/models/user.rb b/app/models/user.rb
index 7745330bd..585ae87da 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -40,13 +40,20 @@ class User < ActiveRecord::Base
   has_many :aspects, :order => 'order_id ASC'
   belongs_to  :auto_follow_back_aspect, :class_name => 'Aspect'
   has_many :aspect_memberships, :through => :aspects
+
   has_many :contacts
   has_many :contact_people, :through => :contacts, :source => :person
+
   has_many :services
+
   has_many :user_preferences
+
   has_many :tag_followings
   has_many :followed_tags, :through => :tag_followings, :source => :tag, :order => 'tags.name'
+
   has_many :blocks
+  has_many :ignored_people, :through => :blocks, :source => :person
+
   has_many :notifications, :foreign_key => :recipient_id
 
   has_many :authorizations, :class_name => 'OAuth2::Provider::Models::ActiveRecord::Authorization', :foreign_key => :resource_owner_id
diff --git a/lib/diaspora/relayable.rb b/lib/diaspora/relayable.rb
index 8558dbf81..317068733 100644
--- a/lib/diaspora/relayable.rb
+++ b/lib/diaspora/relayable.rb
@@ -15,11 +15,23 @@ module Diaspora
 
         validates_associated :parent
         validates :author, :presence => true
+        validate :author_is_not_ignored
 
         delegate :public?, :to => :parent
       end
     end
 
+    def author_is_not_ignored
+      if self.new_record? && self.parent.present?
+        post_author = self.parent.author
+        relayable_author = self.author
+
+        if post_author.local? && post_author.owner.ignored_people.include?(relayable_author)
+          self.errors.add(:author_id, 'This person is ignored by the post author')
+        end
+      end
+    end
+
     # @return [Boolean] true
     def relayable?
       true
@@ -49,19 +61,20 @@ module Diaspora
     def receive(user, person=nil)
       comment_or_like = self.class.where(:guid => self.guid).first || self
 
-      #check to make sure the signature of the comment or like comes from the person claiming to authoring said comment or like
+      # Check to make sure the signature of the comment or like comes from the person claiming to author it
       unless comment_or_like.parent.author == user.person || comment_or_like.verify_parent_author_signature
         Rails.logger.info("event=receive status=abort reason='object signature not valid' recipient=#{user.diaspora_handle} sender=#{self.parent.author.diaspora_handle} payload_type=#{self.class} parent_id=#{self.parent.id}")
         return
       end
 
-      #as the owner of the post being liked or commented on, you need to add your own signature in order to pass it to the people who received your original post
+      # As the owner of the post being liked or commented on, you need to add your own signature in order to
+      # pass it to the people who received your original post
       if user.owns? comment_or_like.parent
         comment_or_like.parent_author_signature = comment_or_like.sign_with_key(user.encryption_key)
         comment_or_like.save!
       end
 
-      #dispatch object DOWNSTREAM, received it via UPSTREAM
+      # Dispatch object DOWNSTREAM, received it via UPSTREAM
       unless user.owns?(comment_or_like)
         comment_or_like.save!
         Postzord::Dispatcher.build(user, comment_or_like).post
diff --git a/spec/models/comment_spec.rb b/spec/models/comment_spec.rb
index 3cdfdc6dd..b2d79b5f0 100644
--- a/spec/models/comment_spec.rb
+++ b/spec/models/comment_spec.rb
@@ -3,7 +3,7 @@
 #   the COPYRIGHT file.
 
 require 'spec_helper'
-require File.join(Rails.root, "spec", "shared_behaviors", "relayable")
+require Rails.root.join("spec", "shared_behaviors", "relayable")
 
 describe Comment do
   before do
@@ -111,6 +111,8 @@ describe Comment do
 
       @object_on_remote_parent = @local_luke.comment!(@remote_parent, "Yeah, it was great")
     end
+
+    let(:build_object) { alice.build_comment(:post => @status, :text => "why so formal?") }
     it_should_behave_like 'it is relayable'
   end
 
diff --git a/spec/models/like_spec.rb b/spec/models/like_spec.rb
index a166fff38..eb670073d 100644
--- a/spec/models/like_spec.rb
+++ b/spec/models/like_spec.rb
@@ -111,6 +111,8 @@ describe Like do
 
       @object_on_remote_parent = @local_luke.like(0, :target => @remote_parent)
     end
+
+    let(:build_object) { alice.build_like(:target => @status, :positive => 1) }
     it_should_behave_like 'it is relayable'
   end
 
diff --git a/spec/models/message_spec.rb b/spec/models/message_spec.rb
index e186afe2a..b9446c40f 100644
--- a/spec/models/message_spec.rb
+++ b/spec/models/message_spec.rb
@@ -3,36 +3,34 @@
 #   the COPYRIGHT file.
 
 require 'spec_helper'
-require File.join(Rails.root, "spec", "shared_behaviors", "relayable")
+require Rails.root.join("spec", "shared_behaviors", "relayable")
 
 describe Message do
   before do
-    @user1 = alice
-    @user2 = bob
-
     @create_hash = {
-      :author => @user1.person,
-      :participant_ids => [@user1.contacts.first.person.id, @user1.person.id],
+      :author => bob.person,
+      :participant_ids => [bob.person.id, alice.person.id],
       :subject => "cool stuff",
-      :messages_attributes => [ {:author => @user1.person, :text => 'stuff'} ]
+      :messages_attributes => [ {:author => bob.person, :text => 'stuff'} ]
     }
 
-    @cnv = Conversation.create!(@create_hash)
-    @message = @cnv.messages.first
+    @conversation = Conversation.create!(@create_hash)
+    @message = @conversation.messages.first
     @xml = @message.to_diaspora_xml
   end
 
   it 'validates that the author is a participant in the conversation' do
-    msg = Message.new(:text => 'yo', :author => eve.person, :conversation_id => @cnv.id)
+    message = Message.new(:text => 'yo', :author => eve.person, :conversation_id => @conversation.id)
+    message.should_not be_valid
   end
 
   describe '#notification_type' do
     it 'does not return anything for the author' do
-      @message.notification_type(@user1, @user1.person).should be_nil
+      @message.notification_type(bob, bob.person).should be_nil
     end
 
     it 'returns private mesage for an actual receiver' do
-      @message.notification_type(@user2, @user1.person).should == Notifications::PrivateMessage
+      @message.notification_type(alice, bob.person).should == Notifications::PrivateMessage
     end
   end
 
@@ -94,13 +92,15 @@ describe Message do
       @object_on_remote_parent = Message.create(msg_hash)
       Postzord::Dispatcher.build(@local_luke, @object_on_remote_parent).post
     end
+
+    let(:build_object) { Message.new(:author => @alice.person, :text => "ohai!", :conversation => @conversation) }
     it_should_behave_like 'it is relayable'
 
     describe '#after_receive' do
       it 'increments the conversation visiblity for the conversation' do
        ConversationVisibility.where(:conversation_id => @object_by_recipient.reload.conversation.id,
                                                      :person_id => @local_luke.person.id).first.unread.should == 0
-  
+
         @object_by_recipient.receive(@local_luke, @local_leia.person)
         ConversationVisibility.where(:conversation_id => @object_by_recipient.reload.conversation.id,
                                                      :person_id => @local_luke.person.id).first.unread.should == 1
diff --git a/spec/shared_behaviors/relayable.rb b/spec/shared_behaviors/relayable.rb
index f49bce11f..08ca1f8c5 100644
--- a/spec/shared_behaviors/relayable.rb
+++ b/spec/shared_behaviors/relayable.rb
@@ -7,6 +7,31 @@ require 'spec_helper'
 describe Diaspora::Relayable do
   shared_examples_for "it is relayable" do
 
+    describe 'validations' do
+      describe 'on :author_id' do
+        it "is invalid if the author is on the parent post author's ignore list when object is created" do
+          bob.blocks.create(:person => alice.person)
+          relayable = build_object
+          relayable.should_not be_valid
+          relayable.should have(1).error_on(:author_id)
+        end
+
+        it "works if the object has no parent" do # This can happen if we get a comment for a post that's been deleted
+          bob.blocks.create(:person => alice.person)
+          relayable = build_object
+          relayable.parent = nil
+          expect { relayable.valid? }.to_not raise_exception
+        end
+
+        it "is valid if the author is added to the parent post author's ignore list later" do
+          relayable = build_object
+          relayable.save!
+          bob.blocks.create(:person => alice.person)
+          relayable.should be_valid
+        end
+      end
+    end
+
     context 'encryption' do
       describe '#parent_author_signature' do
         it 'should sign the object if the user is the post author' do
@@ -37,7 +62,7 @@ describe Diaspora::Relayable do
     context 'propagation' do
       describe '#receive' do
         it 'does not overwrite a object that is already in the db' do
-          lambda{
+          lambda {
             @dup_object_by_parent_author.receive(@local_leia, @local_luke.person)
           }.should_not change(@dup_object_by_parent_author.class, :count)
         end