diff --git a/blocklists/allowed-sites.txt b/blocklists/allowed-sites.txt
index ae795da..e612506 100644
--- a/blocklists/allowed-sites.txt
+++ b/blocklists/allowed-sites.txt
@@ -21,6 +21,9 @@ bugsnag.com
 # Downloading
 metal-tracker.com
 
+# E-mail (Needed for Thrive E-mails)
+sendgrid.net
+
 # Hoopla
 marvel-b1-cdn.bc0a.com