cal.pub0.org/packages/app-store/exchangecalendar/enums.ts

export enum ExchangeAuthentication {
  STANDARD = 0,
  NTLM = 1,
}
export enum ExchangeVersion {
  Exchange2007_SP1 = 0,
  Exchange2010 = 1,
  Exchange2010_SP1 = 2,
  Exchange2010_SP2 = 3,
  Exchange2013 = 4,
  Exchange2013_SP1 = 5,
  Exchange2015 = 6,
  Exchange2016 = 7,
}