Company's Employee Email Address Formats

Company uses 6 email formats, with first last (ex. johnsmith@com.com)
being used 10% of the time.
first_initial lastjsmith@com.com2%
first lastjohnsmith@com.com10%
first_initial '.' lastj.smith@com.com4%
first '.' lastjohn.smith@com.com4%
other_templateother_template@com.com77%
firstjohn@com.com2%