diff --git a/src/pretix/base/services/mail.py b/src/pretix/base/services/mail.py
index ae15c303f5..b6b9b31807 100644
--- a/src/pretix/base/services/mail.py
+++ b/src/pretix/base/services/mail.py
@@ -605,7 +605,7 @@ def mail_send_task(self, *args, to: List[str], subject: str, body: str, html: st
                             'pretix.email.error',
                             data={
                                 'subject': 'Internal error',
-                                'message': 'Max retries exceeded',
+                                'message': f'Max retries exceeded after error "{str(e)}"',
                                 'recipient': '',
                                 'invoices': [],
                             }