diff --git a/htdocs/core/modules/mailings/modules_mailings.php b/htdocs/core/modules/mailings/modules_mailings.php
index 1a97f3502b7..9fb14fe1f1d 100644
--- a/htdocs/core/modules/mailings/modules_mailings.php
+++ b/htdocs/core/modules/mailings/modules_mailings.php
@@ -188,8 +188,8 @@ class MailingTargets    // This can't be abstract as it is used for some method
         			if ($this->db->errno() != 'DB_ERROR_RECORD_ALREADY_EXISTS')
         			{
         				// Si erreur autre que doublon
-        				dol_syslog($this->db->error());
-        				$this->error=$this->db->error();
+        				dol_syslog($this->db->error().' : '.$targetarray['email']);
+        				$this->error=$this->db->error().' : '.$targetarray['email'];
         				$this->db->rollback();
         				return -1;
         			}
diff --git a/htdocs/core/modules/mailings/xinputfile.modules.php b/htdocs/core/modules/mailings/xinputfile.modules.php
index 152322c2899..1453f247d28 100644
--- a/htdocs/core/modules/mailings/xinputfile.modules.php
+++ b/htdocs/core/modules/mailings/xinputfile.modules.php
@@ -179,7 +179,9 @@ class mailing_xinputfile extends MailingTargets
 					        {
 					        	$i++;
 					        	$langs->load("errors");
-					        	$this->error = $langs->trans("ErrorFoundBadEmailInFile",$i,$cpt,$email);
+							$msg = $langs->trans("ErrorFoundBadEmailInFile", $i, $cpt, $email);
+					        	if (!empty($msg)) $this->error = $msg;
+							else $this->error = 'ErrorFoundBadEmailInFile '.$i.' '.$cpt.' '.$email;	// We experience case where $langs->trans return an empty string.
 					        }
 				        }
 				    }