diff --git a/disposable_email_blocklist.conf b/disposable_email_blocklist.conf
index 1376ae9..b6f6e7c 100644
--- a/disposable_email_blocklist.conf
+++ b/disposable_email_blocklist.conf
@@ -2063,6 +2063,7 @@ mailtothis.com
 mailtraps.com
 mailtrash.net
 mailtrix.net
+mailtub.com
 mailtv.net
 mailtv.tv
 mailuniverse.co.uk