Deprecation of basic authentication in Exchange Online

Exchange Online migration design considerations

Introduction Microsoft has announced the deprecation of Basic authentication in Exchange Online. Basic authentication will be permanently disabled in Exchange Online on October 1st, 2022. More specifically, Microsoft is removing the ability to use Basic authentication in Exchange Online for Exchange ActiveSync (EAS), POP, IMAP, Remote PowerShell, Exchange Web Services (EWS), Offline Address Book (OAB), … Read more