diff --git a/filter-rules.py b/filter-rules.py
index 9b0a0f3..0755619 100644
--- a/filter-rules.py
+++ b/filter-rules.py
@@ -61,9 +61,11 @@ BLOCK_DOMAINS = [
     'ikigailabs.io',
     'informareachmedia.com',
     'javentechnologies.com',
+    'kuusakoski.com',
     'mailgun.net',
     'malwarebytes.com',
     'matrixservice.com',
+    'mimecast.com',
     'mktomail.com',
     'norstar.net',
     'orjuno.com',