I see that your account is set up for it. Some email providers automatically block that type of email, considering it to be spam. Sometimes it goes into a spam folder on your account where you can check, but often it doesn't make it that far and is deleted on their server.
Do you have a gmail account you can switch to? Gmail allows it though it might end up in the spam folder the first time, then you would click 'not spam' to make sure it goes in your inbox after that.