a s r's Employee Email Address Formats

a s r uses 5 email formats, with first '.' last (ex. john.smith@asr.nl)
being used 80% of the time.
lastsmith@asr.nl1%
first lastjohnsmith@asr.nl1%
first_initial '.' lastj.smith@asr.nl1%
first '.' lastjohn.smith@asr.nl80%
other_templateother_template@asr.nl19%