Dexcom's Employee Email Address Formats

Dexcom uses 4 email formats, with first_initial last (ex. jsmith@dexcom.com)
being used 75% of the time.
first_initial lastjsmith@dexcom.com75%
first lastjohnsmith@dexcom.com1%
first '.' lastjohn.smith@dexcom.com15%
other_templateother_template@dexcom.com8%