diff --git a/src/socket.io/topics/unread.js b/src/socket.io/topics/unread.js
index 586f9f7486..18bd862f93 100644
--- a/src/socket.io/topics/unread.js
+++ b/src/socket.io/topics/unread.js
@@ -14,25 +14,7 @@ module.exports = function(SocketTopics) {
 			return callback(new Error('[[error:invalid-data]]'));
 		}
 
-		if (!tids.length) {
-			return callback();
-		}
-		tids = tids.filter(function(tid) {
-			return tid && utils.isNumber(tid);
-		});
-
-		topics.markAsRead(tids, socket.uid, function(err) {
-			if (err) {
-				return callback(err);
-			}
-
-			topics.pushUnreadCount(socket.uid);
-
-			for (var i=0; i<tids.length; ++i) {
-				topics.markTopicNotificationsRead(tids[i], socket.uid);
-			}
-			callback();
-		});
+		topics.markAsRead(tids, socket.uid, callback);
 	};
 
 	SocketTopics.markTopicNotificationsRead = function(socket, tid, callback) {
@@ -43,13 +25,7 @@ module.exports = function(SocketTopics) {
 	};
 
 	SocketTopics.markAllRead = function(socket, data, callback) {
-		db.getSortedSetRevRangeByScore('topics:recent', 0, -1, '+inf', Date.now() - topics.unreadCutoff, function(err, tids) {
-			if (err) {
-				return callback(err);
-			}
-
-			SocketTopics.markAsRead(socket, tids, callback);
-		});
+		topics.markAllRead(socket.uid, callback);
 	};
 
 	SocketTopics.markCategoryTopicsRead = function(socket, cid, callback) {
diff --git a/src/topics/unread.js b/src/topics/unread.js
index aa0193b3d6..253592a6d5 100644
--- a/src/topics/unread.js
+++ b/src/topics/unread.js
@@ -9,13 +9,11 @@ var user = require('../user');
 var notifications = require('../notifications');
 var categories = require('../categories');
 var privileges = require('../privileges');
+var meta = require('../meta');
+var utils = require('../../public/src/utils');
 
 module.exports = function(Topics) {
 
-	var unreadCutoff = 86400000 * 2;
-
-	Topics.unreadCutoff = unreadCutoff;
-
 	Topics.getTotalUnread = function(uid, callback) {
 		Topics.getUnreadTids(0, uid, 0, 20, function(err, tids) {
 			callback(err, tids ? tids.length : 0);
@@ -52,13 +50,17 @@ module.exports = function(Topics) {
 		], callback);
 	};
 
+	Topics.unreadCutoff = function() {
+		return Date.now() - (parseInt(meta.config.unreadCutoff, 10) || 2) * 86400000;
+	};
+
 	Topics.getUnreadTids = function(cid, uid, start, stop, callback) {
 		uid = parseInt(uid, 10);
 		if (uid === 0) {
 			return callback(null, []);
 		}
 
-		var cutoff = Date.now() - unreadCutoff;
+		var cutoff = Topics.unreadCutoff();
 
 		async.parallel({
 			ignoredCids: function(next) {
@@ -166,9 +168,13 @@ module.exports = function(Topics) {
 		if (!Array.isArray(tids) || !tids.length) {
 			return callback();
 		}
-		tids = tids.filter(Boolean);
+
+		tids = tids.filter(function(tid) {
+			return tid && utils.isNumber(tid);
+		});
+
 		if (!tids.length) {
-			return callback();
+			return callback(null, false);
 		}
 
 		async.waterfall([
@@ -184,7 +190,7 @@ module.exports = function(Topics) {
 				});
 
 				if (!tids.length) {
-					return callback();
+					return callback(null, false);
 				}
 
 				var now = Date.now();
@@ -208,11 +214,30 @@ module.exports = function(Topics) {
 				categories.markAsRead(cids, uid, next);
 			},
 			function (next) {
+				Topics.pushUnreadCount(uid);
+
+				for (var i=0; i<tids.length; ++i) {
+					Topics.markTopicNotificationsRead(tids[i], uid);
+				}
 				next(null, true);
 			}
 		], callback);
 	};
 
+	Topics.markAllRead = function(uid, callback) {
+		async.waterfall([
+			function (next) {
+				db.getSortedSetRevRangeByScore('topics:recent', 0, -1, '+inf', Topics.unreadCutoff(), next);
+			},
+			function (tids, next) {
+				Topics.markAsRead(uid, tids, next);
+			},
+			function (markedRead, next) {
+				db.delete('uid:' + uid + ':tids_unread', next);
+			}
+		], callback);
+	};
+
 	Topics.markTopicNotificationsRead = function(tid, uid) {
 		if (!tid) {
 			return;
@@ -259,7 +284,7 @@ module.exports = function(Topics) {
 				return callback(err);
 			}
 
-			var cutoff = Date.now() - unreadCutoff;
+			var cutoff = Topics.unreadCutoff();
 			var result = tids.map(function(tid, index) {
 				return !results.tids_unread[index] &&
 					(results.recentScores[index] < cutoff ||
diff --git a/src/views/admin/settings/post.tpl b/src/views/admin/settings/post.tpl
index ee7653d3ae..590f0e18cd 100644
--- a/src/views/admin/settings/post.tpl
+++ b/src/views/admin/settings/post.tpl
@@ -92,6 +92,18 @@
 </div>
 
 
+<div class="row">
+	<div class="col-sm-2 col-xs-12 settings-header">Unread Settings</div>
+	<div class="col-sm-10 col-xs-12">
+		<form>
+			<div class="form-group">
+				<label for="unreadCutoff">Unread cutoff days</label>
+				<input id="unreadCutoff" type="text" class="form-control" value="2" data-field="unreadCutoff">
+			</div>
+		</form>
+	</div>
+</div>
+
 <div class="row">
 	<div class="col-sm-2 col-xs-12 settings-header">Signature Settings</div>
 	<div class="col-sm-10 col-xs-12">