diff --git a/htdocs/comm/propal.php b/htdocs/comm/propal.php
index 3a6f3a7ceff..99119414971 100644
--- a/htdocs/comm/propal.php
+++ b/htdocs/comm/propal.php
@@ -434,7 +434,16 @@ if (empty($reshook)) {
 				$from = $_POST ['fromname'] . ' <' . $_POST ['frommail'] . '>';
 				$replyto = $_POST ['replytoname'] . ' <' . $_POST ['replytomail'] . '>';
 				$message = $_POST ['message'];
-				$sendtocc = $_POST ['sendtocc'];
+				
+				$receivercc = GETPOST('receivercc');
+				if($_POST ['sendtocc']!=='') {
+					$sendtocc = $_POST ['sendtocc']  ;	
+				}
+				elseif($receivercc!=-1) {
+					$sendtocc = $object->client->contact_get_property($receivercc, 'email');
+				}
+				
+				
 				$deliveryreceipt = $_POST ['deliveryreceipt'];
 
 				if (dol_strlen($_POST ['subject']))
diff --git a/htdocs/compta/facture.php b/htdocs/compta/facture.php
index 4a2b13b0069..af28d80b9e9 100644
--- a/htdocs/compta/facture.php
+++ b/htdocs/compta/facture.php
@@ -1571,7 +1571,15 @@ if (empty($reshook)) {
 				$from = $_POST['fromname'] . ' <' . $_POST['frommail'] . '>';
 				$replyto = $_POST['replytoname'] . ' <' . $_POST['replytomail'] . '>';
 				$message = $_POST['message'];
-				$sendtocc = $_POST['sendtocc'];
+				
+				$receivercc = GETPOST('receivercc');
+				if($_POST ['sendtocc']!=='') {
+					$sendtocc = $_POST ['sendtocc']  ;	
+				}
+				elseif($receivercc!=-1) {
+					$sendtocc = $object->client->contact_get_property($receivercc, 'email');
+				}
+				
 				$deliveryreceipt = $_POST['deliveryreceipt'];
 
 				if ($action == 'send') {