diff --git a/htdocs/core/class/smtps.class.php b/htdocs/core/class/smtps.class.php
index 8d8d95369e5..bca65ed5d84 100644
--- a/htdocs/core/class/smtps.class.php
+++ b/htdocs/core/class/smtps.class.php
@@ -1686,6 +1686,8 @@ class SMTPs
 			}
 
 			$content .= "--".$this->_getBoundary('mixed').'--'."\r\n";
+		} else {
+			die("Sorry, no content");
 		}
 
 		return $content;