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, }