diff --git a/sysadmin/letsencrypt_mail.py b/sysadmin/letsencrypt_mail.py
index 1a24e01..8a6eb02 100644
--- a/sysadmin/letsencrypt_mail.py
+++ b/sysadmin/letsencrypt_mail.py
@@ -38,6 +38,8 @@ def main():
             state = State.renewed
         elif "not due for renewal" in line:
             state = State.no_action
+        elif "unexpected error occurred" in line:
+            state = State.error
 
     text = "\n".join(text)
     subject = SUBJECT.format(str(state))