If you have an email ending in @hotmail.com, @live.com or @outlook.com (or any other Microsoft-related domain), please consider changing it to another email provider; Microsoft decided to instantly block the server's IP, so emails can't be sent to these addresses.
If you use an @yahoo.com email or any related Yahoo services, they have blocked us also due to "user complaints"
People who try to open doors to personal spots (bedroom, bathroom, etc) before knocking
Just happened to me. They nearly walked in (one of the few times I forgot to lock the door). People, KNOCK FIRST! If the person doesn't answer, THEN try the knob!