diff --git a/compose.yaml b/compose.yaml
index 51e4b95..bd4c878 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -50,7 +50,13 @@ services:
       BACKUP_KEEP_DAYS: 14
       TIMEZONE: 'Europe/Berlin'
       MAIL_SMTP_ENABLE: 'TRUE'
-      MAIL_SMTP_VARIABLES: 'smtp_hostname=live.smtp.mailtrap.io,smtp_port=587,smtp_username=api,smtp_password=f2149ea35ddb1c5f622f8253550e55e1,from_email=admin@doeringer.eu,from_name=Vaultwarden-Backup,reply_to_email=admin@doeringer.eu,reply_to_name=Vaultwarden-Backup'
+      MAIL_SMTP_VARIABLES: >-
+          -S smtp-use-starttls
+          -S smtp=smtp://live.smtp.mailtrap.io:587
+          -S smtp-auth=login
+          -S smtp-auth-user=api
+          -S smtp-auth-password=f2149ea35ddb1c5f622f8253550e55e1
+          -S from=vaultwarden@doeringer.eu
       MAIL_TO: 'tobias@doeringer.eu'
       MAIL_WHEN_SUCCESS: 'TRUE'
       MAIL_WHEN_FAILURE: 'TRUE'