diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/activities/InboxActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/activities/InboxActivity.java
index f47348cc..22d22c8c 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/activities/InboxActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/activities/InboxActivity.java
@@ -41,13 +41,18 @@ import ml.docilealligator.infinityforreddit.ActivityToolbarInterface;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
+import ml.docilealligator.infinityforreddit.apis.RedditAPI;
 import ml.docilealligator.infinityforreddit.asynctasks.GetCurrentAccount;
 import ml.docilealligator.infinityforreddit.asynctasks.SwitchAccountAsyncTask;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.events.SwitchAccountEvent;
 import ml.docilealligator.infinityforreddit.fragments.InboxFragment;
 import ml.docilealligator.infinityforreddit.message.FetchMessage;
+import ml.docilealligator.infinityforreddit.utils.APIUtils;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
 import retrofit2.Retrofit;
 
 public class InboxActivity extends BaseActivity implements ActivityToolbarInterface {
@@ -230,6 +235,33 @@ public class InboxActivity extends BaseActivity implements ActivityToolbarInterf
                 sectionsPagerAdapter.refresh();
             }
             return true;
+        } else if (item.getItemId() == R.id.action_read_all_messages_inbox_activity) {
+            if (mAccessToken != null) {
+                Toast.makeText(this, R.string.please_wait, Toast.LENGTH_SHORT).show();
+                mOauthRetrofit.create(RedditAPI.class).readAllMessages(APIUtils.getOAuthHeader(mAccessToken))
+                        .enqueue(new Callback<String>() {
+                            @Override
+                            public void onResponse(@NonNull Call<String> call, @NonNull Response<String> response) {
+                                if (response.isSuccessful()) {
+                                    Toast.makeText(InboxActivity.this, R.string.read_all_messages_success, Toast.LENGTH_SHORT).show();
+                                    if (sectionsPagerAdapter != null) {
+                                        sectionsPagerAdapter.readAllMessages();
+                                    }
+                                } else {
+                                    if (response.code() == 429) {
+                                        Toast.makeText(InboxActivity.this, R.string.read_all_messages_time_limit, Toast.LENGTH_LONG).show();
+                                    } else {
+                                        Toast.makeText(InboxActivity.this, R.string.read_all_messages_failed, Toast.LENGTH_LONG).show();
+                                    }
+                                }
+                            }
+
+                            @Override
+                            public void onFailure(@NonNull Call<String> call, @NonNull Throwable t) {
+                                Toast.makeText(InboxActivity.this, R.string.read_all_messages_failed, Toast.LENGTH_LONG).show();
+                            }
+                        });
+            }
         } else if (item.getItemId() == android.R.id.home) {
             finish();
             return true;
@@ -354,5 +386,14 @@ public class InboxActivity extends BaseActivity implements ActivityToolbarInterf
                 }
             }
         }
+
+        void readAllMessages() {
+            if (tab1 != null) {
+                tab1.markAllMessagesRead();
+            }
+            if (tab2 != null) {
+                tab2.markAllMessagesRead();
+            }
+        }
     }
 }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/MessageRecyclerViewAdapter.java b/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/MessageRecyclerViewAdapter.java
index 504b3a51..e6da1344 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/MessageRecyclerViewAdapter.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/MessageRecyclerViewAdapter.java
@@ -78,6 +78,7 @@ public class MessageRecyclerViewAdapter extends PagedListAdapter<Message, Recycl
     private int mUnreadMessageBackgroundColor;
     private int mColorPrimaryLightTheme;
     private int mButtonTextColor;
+    private boolean markAllMessagesAsRead = false;
 
     public MessageRecyclerViewAdapter(Context context, Retrofit oauthRetrofit,
                                       CustomThemeWrapper customThemeWrapper,
@@ -216,8 +217,12 @@ public class MessageRecyclerViewAdapter extends PagedListAdapter<Message, Recycl
                     displayedMessage = message;
                 }
                 if (message.isNew()) {
-                    ((DataViewHolder) holder).itemView.setBackgroundColor(
-                            mUnreadMessageBackgroundColor);
+                    if (markAllMessagesAsRead) {
+                        message.setNew(false);
+                    } else {
+                        ((DataViewHolder) holder).itemView.setBackgroundColor(
+                                mUnreadMessageBackgroundColor);
+                    }
                 }
 
                 if (message.wasComment()) {
@@ -340,6 +345,10 @@ public class MessageRecyclerViewAdapter extends PagedListAdapter<Message, Recycl
         }
     }
 
+    public void setMarkAllMessagesAsRead(boolean markAllMessagesAsRead) {
+        this.markAllMessagesAsRead = markAllMessagesAsRead;
+    }
+
     public interface RetryLoadingMoreCallback {
         void retryLoadingMore();
     }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/apis/RedditAPI.java b/app/src/main/java/ml/docilealligator/infinityforreddit/apis/RedditAPI.java
index 3bee57fb..516d6e36 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/apis/RedditAPI.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/apis/RedditAPI.java
@@ -336,4 +336,7 @@ public interface RedditAPI {
 
     @GET("/r/randnsfw/new.json?sort=new&t=all&limit=1&raw_json=1")
     Call<String> getRandomNSFWPost();
+
+    @POST("/api/read_all_messages")
+    Call<String> readAllMessages(@HeaderMap Map<String, String> headers);
 }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/InboxFragment.java b/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/InboxFragment.java
index f23b6597..d97ad1ff 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/InboxFragment.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/InboxFragment.java
@@ -171,6 +171,27 @@ public class InboxFragment extends Fragment implements FragmentCommunicator {
         }
     }
 
+    public void markAllMessagesRead() {
+        if (mAdapter != null) {
+            mAdapter.setMarkAllMessagesAsRead(true);
+
+            int previousPosition = -1;
+            if (mLinearLayoutManager != null) {
+                previousPosition = mLinearLayoutManager.findFirstVisibleItemPosition();
+            }
+
+            RecyclerView.LayoutManager layoutManager = mRecyclerView.getLayoutManager();
+            mRecyclerView.setAdapter(null);
+            mRecyclerView.setLayoutManager(null);
+            mRecyclerView.setAdapter(mAdapter);
+            mRecyclerView.setLayoutManager(layoutManager);
+
+            if (previousPosition > 0) {
+                mRecyclerView.scrollToPosition(previousPosition);
+            }
+        }
+    }
+
     private void onRefresh() {
         mMessageViewModel.refresh();
         mAdapter.setNetworkState(null);
diff --git a/app/src/main/res/menu/inbox_activity.xml b/app/src/main/res/menu/inbox_activity.xml
index f7d06665..c3eb4cc9 100644
--- a/app/src/main/res/menu/inbox_activity.xml
+++ b/app/src/main/res/menu/inbox_activity.xml
@@ -6,4 +6,10 @@
         android:orderInCategory="1"
         android:title="@string/action_refresh"
         app:showAsAction="never" />
+
+    <item
+        android:id="@+id/action_read_all_messages_inbox_activity"
+        android:orderInCategory="2"
+        android:title="@string/action_read_all_messages"
+        app:showAsAction="never" />
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 8223e5f7..a5aa5353 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -75,6 +75,7 @@
     <string name="action_select_user_flair">Select User Flair</string>
     <string name="action_give_award">Give Award</string>
     <string name="action_save_to_database">Save to Database</string>
+    <string name="action_read_all_messages">Read All Messages</string>
 
     <string name="parse_json_response_error">Error occurred when parsing the JSON response</string>
     <string name="retrieve_token_error">Error Retrieving the token</string>
@@ -992,5 +993,9 @@
     <string name="subreddit">Subreddit</string>
     <string name="user">User</string>
     <string name="edit_post_filter_name_of_usage_info">Leave it blank to apply this post filter to all the subreddits / users / multireddits</string>
+    
+    <string name="read_all_messages_time_limit">You are doing this too frequently. Try again later. This is Reddit API\'s rate limit.</string>
+    <string name="read_all_messages_success">Read all messages successfully</string>
+    <string name="read_all_messages_failed">Unable to read all messages</string>
 
 </resources>