We are running the latest version of WHD and all email functionality was previously working. Recently we noticed that customers were not responding to follow-up questions we asked them by adding Notes to tickets. People began reporting to us that they are no longer receiving Notes/updates about their tickets by email. As a standard practice, we make sure the "Visible to client" box is checked when we write and save an Note. We also click "Save&Email" when we are done. It's a mystery to me why this functionality has stopped working. I've reviewed the email setup and everything appears to be correct. Has anyone seen this issue or one similar to it? Thanks.