From 8151f68c3cd68d1723ffda83945ebc1385fcaae5 Mon Sep 17 00:00:00 2001
From: Ivan Socolsky <jungans@gmail.com>
Date: Tue, 9 Jun 2015 16:55:46 -0300
Subject: [PATCH] unique recipient list

---
 lib/emailservice.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/emailservice.js b/lib/emailservice.js
index 9d10c68..e5ad0d8 100644
--- a/lib/emailservice.js
+++ b/lib/emailservice.js
@@ -124,8 +124,11 @@ EmailService.prototype._getRecipientsList = function(notification, emailType, cb
     if (err) return cb(err);
     if (_.isEmpty(preferences)) return cb(null, []);
 
+    var usedEmails = {};
     var recipients = _.compact(_.map(preferences, function(p) {
-      if (!p.email) return;
+      if (!p.email || usedEmails[p.email]) return;
+
+      usedEmails[p.email] = true;
       if (notification.creatorId == p.copayerId && !emailType.notifyDoer) return;
       return {
         copayerId: p.copayerId,