diff --git a/disposable_email_blocklist.conf b/disposable_email_blocklist.conf
index 0b67891..0b5e38e 100644
--- a/disposable_email_blocklist.conf
+++ b/disposable_email_blocklist.conf
@@ -1709,6 +1709,7 @@ incognitomail.org
 incq.com
 ind.st
 indieclad.com
+indigobook.com
 indirect.ws
 indomaed.pw
 indomina.cf