More than likely, your email server ate it. One common reason, especially with hotmail.com and other free email services, is the erroneous tagging of our emails as "spam". This can happen if your spam settings (i.e. with hotmail) are set too restrictive. Check your spam folder in your email client (or in hotmail, et al). Another popular reason for this happening is that you entered the wrong email address, or an invalid email address. Also, check your mail client, and make sure you are sending emails from the correct email address. Sadly, we cannot count how many times people send us an email asking for help on something, only to have our responses bounce back because of an invalid email address. If you ask us for help, and you don't receive a reply within 24 hours or so, then most likely, our responses are bouncing back because you sent mail from an invalid email address.