The emails are sent if their is sufficient descrepancy between your data and the aggregate. That doesn't necessarily mean that your data is wrong. Sometimes the aggregate can be wrong if there's some really bad data put into it.
If you are getting a lot of emails then you should take a look at your station. One of the problems with reading the data is that your email client may be skewing the layout because of how it handles the spacing. Try cutting and pasting the data into a text editor like Notepad and see if it's a little easier to read. I don't know for sure if that will help and I don't have an error report in my inbox to check it out myself.