diff --git a/app/email_domains.yml b/app/email_domains.yml
index 0a8978384..115926e42 100644
--- a/app/email_domains.yml
+++ b/app/email_domains.yml
@@ -39,3 +39,4 @@
 - derrystrabane.com
 - hscni.net
 - bi.team
+- networkrail.co.uk