Chordie does not have an inbox or direct mail feature. You can email from chordie by clicking the email link below your user name in the forum, however the actual emails will be to / from your personal account. Perhaps check the email you have associated with chordie? Or if you are a member of chordie's facebook page, perhaps the message is on your FB account?
If none of those are true, we might need to look out for a chordie email spammer