Aetna's Employee Email Address Formats

Aetna uses 6 email formats, with last first_initial (ex. smithj@aetna.com)
being used 48% of the time.
first_initial lastjsmith@aetna.com2%
last first_initialsmithj@aetna.com48%
first lastjohnsmith@aetna.com1%
first last_initialjohns@aetna.com3%
first '.' lastjohn.smith@aetna.com2%
other_templateother_template@aetna.com44%