I am getting e-mail bombed by the Dlink_Mail_Center with the same messages, on sound bursts and motion detection in all my cameras (and they are many). I logged into my account at the www.mydlink.com and went to my home page where all my cameras were present. I went to the settings tab and I unchecked the "send e-mail notifications", which I never had checked, anyway.
The problem was fixed for 5 hours, and then notifications and email messages started pouring again. Went back to mydlink.com, and the "send email notifications" was magically found to be checked!!! Unchecked it, but still get notifications. What gives? Please fix this bug. On the lighter side, I remember we all had hard time in the past getting the e-mail function to work. Now it works without having to do anything at all (albeit the email messages do not come from the camera, but from mydlink.com)