diff --git a/README.md b/README.md
index a470313..c949c88 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,8 @@ INSIGHT_NETWORK [= 'livenet' | 'testnet']
 INSIGHT_DB            # Path where to store insight's internal DB. (defaults to $HOME/.insight)
 INSIGHT_SAFE_CONFIRMATIONS=6  # Nr. of confirmation needed to start caching transaction information   
 INSIGHT_IGNORE_CACHE  # True to ignore cache of spents in transaction, with more than INSIGHT_SAFE_CONFIRMATIONS confirmations. This is useful for tracking double spents for old transactions.
-ENABLE_MAILBOX # if "true" will enable message broker module
+ENABLE_MAILBOX # if "true" will enable mailbox plugin
+LOGGER_LEVEL # defaults to 'info', can be 'debug','verbose','error', etc.
 
 ```
 
diff --git a/config/config.js b/config/config.js
index ca1fe4c..f3941ac 100644
--- a/config/config.js
+++ b/config/config.js
@@ -77,6 +77,7 @@ var bitcoindConf = {
 };
 
 var enableMailbox = process.env.ENABLE_MAILBOX === 'true';
+var loggerLevel = process.env.LOGGER_LEVEL || 'info';
 
 if (!fs.existsSync(db)) {
   var err = fs.mkdirSync(db);
@@ -90,6 +91,7 @@ if (!fs.existsSync(db)) {
 
 module.exports = {
   enableMailbox: enableMailbox,
+  loggerLevel: loggerLevel,
   version: version,
   root: rootPath,
   publicPath: process.env.INSIGHT_PUBLIC_PATH || false,
diff --git a/lib/logger.js b/lib/logger.js
index 61140ee..2884ec7 100644
--- a/lib/logger.js
+++ b/lib/logger.js
@@ -1,4 +1,5 @@
 var winston = require('winston');
+var config = require('../config/config');
 
 var logger = new winston.Logger({
   transports: [
@@ -7,7 +8,7 @@ var logger = new winston.Logger({
     }),
   ]
 });
-logger.transports.console.level = 'debug';
+logger.transports.console.level = config.loggerLevel;
 logger.info('starting...');
 
 module.exports.logger = logger;
diff --git a/plugins/mailbox.js b/plugins/mailbox.js
index 5d6cab7..75cfdb9 100644
--- a/plugins/mailbox.js
+++ b/plugins/mailbox.js
@@ -8,7 +8,6 @@ module.exports.init = function(ext_io, config) {
   preconditions.checkArgument(ext_io);
   io = ext_io;
   io.sockets.on('connection', function(socket) {
-    // when it requests sync, send him all pending messages
     // when it requests sync, send him all pending messages
     socket.on('sync', function(ts) {
       logger.debug('Sync requested by ' + socket.id);