EDFtrading's Employee Email Address Formats

EDFtrading uses 3 email formats, with first '.' last (ex. john.smith@edftrading.com)
being used 90% of the time.
first lastjohnsmith@edftrading.com1%
first '.' lastjohn.smith@edftrading.com90%
other_templateother_template@edftrading.com8%