diff --git a/Dockerfile b/Dockerfile
index 9ad1242..afa1f46 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,6 +22,9 @@ ENV MAILGUN_SENDER=$MAILGUN_SENDER
 ARG MAIL_PROVIDER
 ENV MAIL_PROVIDER=$MAIL_PROVIDER
 
+ARG EMAIL_TO
+ENV EMAIL_TO=$EMAIL_TO
+
 RUN npm run build
 RUN npm prune --production