diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 2b65e07b..33cfbf8a 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -65,12 +65,12 @@ class SessionsController < ApplicationController
   def create
     logger.info "Support: #{session_params[:email]} is attempting to login."
 
-    user = User.include_deleted.find_by(email: session_params[:email])
+    user = User.include_deleted.find_by(email: session_params[:email].downcase)
 
     is_super_admin = user&.has_role? :super_admin
 
     # Scope user to domain if the user is not a super admin
-    user = User.include_deleted.find_by(email: session_params[:email], provider: @user_domain) unless is_super_admin
+    user = User.include_deleted.find_by(email: session_params[:email].downcase, provider: @user_domain) unless is_super_admin
 
     # Check user with that email exists
     return redirect_to(signin_path, alert: I18n.t("invalid_credentials")) unless user