this domain name is a utility address for Girder Networks.
recently we've become aware that someone is fraudulently using a girder.net email address as the "reply-to" address while sending unsolicited commercial emails (UCE, or SPAM).
these emails did not originate from girder.net, and Girder Networks has no physical ability to stop them from being created or sent.
you will never receive an email that is legitimately from girder.net, as this domain is not used for outbound communications with anyone, either Girder Networks customers or others.
we understand your frustration, but are powerless to prevent nefarious parties from creating these fraudulent emails, as they do not do so from our network.