When trying to logon program fails with error 0x80004005==MAPI_E_CALL_FAILED. Neither known issue applies as I have a 64 bit version of Outlook installed and Outlook, not Windows Mail,is the default mail client. I have a stuck message sending but no message in the outbox of wither of the two accounts in Outlook. I suspect a stuck read receipt, cannot get MFCMAPIx64 started to fix the problem