在切换服务器时过滤破坏的referer Django电子邮件

We often change IP addresses on AWS when switching EC2 servers (yes, we use Elastic IPs when applicable). Sometimes we get IP addresses that used to host other applications (which is fine, of course). When end users click on stale links they get to our servers (which is ok). But these HTTP GET requests have a "referer" header, thus the regular 404 error generates an automated Django email to our developers!We often change IP addresses on AWS when switch