Ameriprise Financial's Employee Email Address Formats

Ameriprise Financial uses 4 email formats, with first_initial last (ex. jsmith@ameriprise.com)
being used 35% of the time.
first_initial lastjsmith@ameriprise.com35%
first lastjohnsmith@ameriprise.com3%
first '.' lastjohn.smith@ameriprise.com23%
other_templateother_template@ameriprise.com40%