What will replace this tool to allow the same functionality without the MAPI connection?
Comments: ** Comment from web user: sgriffin **
Is this a theoretical issue or one you've actually experienced? MAPI connections are not blocked in 365. They just have to use the RPC/HTTP transport, which both Outlook and MAPICDO implementations are capable of doing. I personally use MFCMAPI to connect to my own 365 mailbox all the time. There is no planned replacement because MFCMAPI still works.