diff --git a/templates/list b/templates/list
index 356f9a6..76788cf 100644
--- a/templates/list
+++ b/templates/list
@@ -4,9 +4,9 @@
 {%  for user in data -%}
 {%- for alias in user.email_address -%}
 {%- if user.local_email_redirect -%}
-{{ alias.local_part }}:{{ user.email }}
+{{ alias.local_part }}:{{ user.email|lower }}
 {%- else -%}
-{{ alias.local_part }}:{{ alias.user }}
+{{ alias.local_part }}:{{ alias.user|lower }}
 {% endif %}
 {%- endfor -%}
 {%- endfor -%}