Problem replying to an e-mail

I am wondering if the lady who e-mailed me tonight about the Saltwell Park pattern could get back in touch again? I have made several attempts to reply to your e-mail but there appears to be something wrong with your e-mail address. I tried a variety of permutations on it, also to no avail. Each time I received a message saying that the account does not exist. Perhaps your service provider could assist you from your end - I will try as well.