Currently when emails are being sent out, they are sent in the American date format, ie MM/DD/YYYY, e.g.:
Log Date: 4/27/2007
America is the only country in the world that uses this date format. Europeans and Australians use DD/MM/YY(YY), so a date of 4/5/2007 is extremely confusing as we normally recognize that as 4th May, and we have to remember whether dates normally come from this site in the American date format or not, so that we can decipher it.
Fortunately, there is a great solution. There is an ISO standard for dates, and it is YYYY-MM-DD (note that it uses "-" rather than "/"). Could you please update the emails that you send out (and ideally the rest of your site) to use this international date format so that the entire rest of the world outside America doesn't get confused?
Note that Americans won't get confused by this date format either, as there is no such thing as a YYYY-DD-MM date format. There is only ever one meaning for 2007-05-04, which is the 4th May, 2007.