diff --git a/apps/common/main/lib/controller/Comments.js b/apps/common/main/lib/controller/Comments.js
index 115657f63..2203d87fb 100644
--- a/apps/common/main/lib/controller/Comments.js
+++ b/apps/common/main/lib/controller/Comments.js
@@ -406,9 +406,11 @@ define([
                     reply = null,
                     addReply = null,
                     ascComment = buildCommentData(),   //  new asc_CCommentData(null),
-                    comment = t.findComment(id);
+                    comment = t.findComment(id),
+                    oldCommentVal = '';
 
                 if (comment && ascComment) {
+                    oldCommentVal = comment.get('comment');
                     ascComment.asc_putText(commentVal);
                     ascComment.asc_putQuoteText(comment.get('quote'));
                     ascComment.asc_putTime(t.utcDateToString(new Date(comment.get('time'))));
@@ -452,6 +454,7 @@ define([
                     }
 
                     t.api.asc_changeComment(id, ascComment);
+                    t.mode && t.mode.canRequestSendNotify && t.view.pickEMail(ascComment.asc_getGuid(), commentVal, oldCommentVal);
 
                     return true;
                 }
@@ -465,7 +468,8 @@ define([
                     reply = null,
                     addReply = null,
                     ascComment = buildCommentData(),   //  new asc_CCommentData(null),
-                    comment = me.findComment(id);
+                    comment = me.findComment(id),
+                    oldReplyVal = '';
 
                 if (ascComment && comment) {
                     ascComment.asc_putText(comment.get('comment'));
@@ -489,6 +493,7 @@ define([
                             addReply = buildCommentData();   //  new asc_CCommentData();
                             if (addReply) {
                                 if (reply.get('id') === replyId && !_.isUndefined(replyVal)) {
+                                    oldReplyVal = reply.get('reply');
                                     addReply.asc_putText(replyVal);
                                     addReply.asc_putUserId(me.currentUserId);
                                     addReply.asc_putUserName(AscCommon.UserInfoParser.getCurrentName());
@@ -508,7 +513,7 @@ define([
                     }
 
                     me.api.asc_changeComment(id, ascComment);
-
+                    me.mode && me.mode.canRequestSendNotify && me.view.pickEMail(ascComment.asc_getGuid(), replyVal, oldReplyVal);
                     return true;
                 }
             }
diff --git a/apps/common/main/lib/view/Comments.js b/apps/common/main/lib/view/Comments.js
index 21732dd11..879779f17 100644
--- a/apps/common/main/lib/view/Comments.js
+++ b/apps/common/main/lib/view/Comments.js
@@ -806,11 +806,19 @@ define([
             return str_res;
         },
 
-        pickEMail: function (commentId, message) {
+        pickEMail: function (commentId, message, oldMessage) {
+            var old_arr = [];
+            if (oldMessage) {
+                old_arr = Common.Utils.String.htmlEncode(oldMessage).match(/\B[@+][A-Z0-9._%+-]+@[A-Z0-9._-]+\.[A-Z]+\b/gi);
+                old_arr = _.map(old_arr, function(str){
+                    return str.slice(1, str.length);
+                });
+            }
             var arr = Common.Utils.String.htmlEncode(message).match(/\B[@+][A-Z0-9._%+-]+@[A-Z0-9._-]+\.[A-Z]+\b/gi);
             arr = _.map(arr, function(str){
                 return str.slice(1, str.length);
             });
+            arr = _.difference(arr, old_arr);
             (arr.length>0) && Common.Gateway.requestSendNotify({
                 emails: arr,
                 actionId: commentId, // comment id