debugging sending emails

budgets/recipients.txt

@@ -1,2 +1 @@
 frey@imtek.de
-brandstetter@imtek.de

superx_budget/pyramid/overview.py

@@ -155,6 +155,6 @@ def send_overview(context, request):
         tmp.seek(0)
         attachment = Attachment(xls_name, XLSX_CONTENT_TYPE, tmp)
         message.attach(attachment)
-        request.mailer.send(message)
+        request.mailer.send_immediately(message, fail_silently=False)
 
     return {"recipients": recipients, "xls_name": xls_name}