diff --git a/lib/winston-mail.js b/lib/winston-mail.js
index ba1d9d9..e86a356 100644
--- a/lib/winston-mail.js
+++ b/lib/winston-mail.js
@@ -71,10 +71,11 @@ Mail.prototype.log = function (level, msg, meta, callback) {
   var self = this;
   if (this.silent) return callback(null, true);
 
-  if (meta) // add some pretty printing
-    meta = util.inspect(meta, null, 5)
+  var body = msg;
 
-  var body = meta ? msg + "\n\n" + meta : msg;
+  // add meta info into the body if not empty
+  if (meta !== null && meta !== undefined && (typeof meta !== 'object' || Object.keys(meta).length > 0))
+      body += "\n\n" + util.inspect(meta, {depth: 5}); // add some pretty printing
 
   var message = email.message.create({
     from: this.from,