diff --git a/src/mailer.ts b/src/mailer.ts
index 447df70..5fff1d0 100644
--- a/src/mailer.ts
+++ b/src/mailer.ts
@@ -96,6 +96,7 @@ export class Mailer {
             });
         } catch (error) {
             if (Mailer.testing) { return true; }
+            console.error("Error while sending selfservice forgotten mail:", error);
             throw new MailSendingError();
         }
     }