diff --git a/data.template.ini b/data.template.ini
index e7e7597..4502f3c 100644
--- a/data.template.ini
+++ b/data.template.ini
@@ -4,6 +4,7 @@ genomes=zma
 
 ; enter email to receive status updates from the cluster
 ; setting the email to None will disable this
+; Warning: this might generate a lot of emails for large datasets. Leaving this on None is recommended
 email=None
 
 ; orthofinder settings (runs on all species)