diff --git a/backup-email b/backup-email
index 7cdf55e..34e15e1 100644
--- a/backup-email
+++ b/backup-email
@@ -30,6 +30,10 @@
 :global WaitForFile;
 :global WaitFullyConnected;
 
+:if ([ :typeof $SendEMail2 ] = "nothing") do={
+  $LogPrintExit2 error $0 ("The module for sending notifications via e-mail is not installed.") true;
+}
+
 :if ($BackupSendBinary != true && \
      $BackupSendExport != true) do={
   $LogPrintExit2 error $0 ("Configured to send neither backup nor config export.") true;