diff --git a/roles/docker/templates/restic/failure.sh.j2 b/roles/docker/templates/restic/failure.sh.j2
index e0d49ef..42900e1 100644
--- a/roles/docker/templates/restic/failure.sh.j2
+++ b/roles/docker/templates/restic/failure.sh.j2
@@ -1,5 +1,5 @@
 #!/bin/sh
-curl smtp://postfix --mail-from {{ services.restic.mail_from }} --mail-rcpt admin@data.coop --upload-file . << END_OF_MAIL
+curl smtp://{{ smtp_host }} --mail-from {{ services.restic.mail_from }} --mail-rcpt admin@data.coop --upload-file . << END_OF_MAIL
 From: Restic backup <{{ services.restic.mail-from }}>
 To: admin-hold@data.coop
 Subject: Restic backup failed