Our exchange connector in SCCM was working.
it has now stopped
looking at the sync logs from sccm we see the following
INFO: Start to process Conditional Access https://exchange/powershell. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:08 PM 6432 (0x1920)
CA is not enabled SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:08 PM 6432 (0x1920)
INFO: End to process Conditional Access https://exchange/powershell. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:08 PM 6432 (0x1920)
Conditional Access is waiting for file change notification or timeout after 5 minutes. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:08 PM 6432 (0x1920)
INFO: Start to process CA Consistancy Checker for https://exchange/powershell. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:08 PM 12104 (0x2F48)
Exchange Connector run Consistancy Checker on the CA devices SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:08 PM 12104 (0x2F48)
ERROR: Decryption failed. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 12104 (0x2F48)
ERROR: Failed to get password for account DOMAIN\SccmExcCon SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 12104 (0x2F48)
ERROR: Failed to call Initialize of managed COM. error = Unknown error 0x87D20001 SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 12104 (0x2F48)
INFO: Raise Exchange Connector connection failure alert. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 12104 (0x2F48)
ERROR: Failed to initialize managed com instance. Error = Unknown error 0x87D20001, -2016280575 SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 12104 (0x2F48)
INFO: End to process for Consistancy Checker https://exchange/powershell. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 12104 (0x2F48)
ERROR: Decryption failed. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 700 (0x02BC)
ERROR: Failed to get password for account DOMAIN\SccmExcCon SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 700 (0x02BC)
ERROR: Failed to call Initialize of managed COM. error = Unknown error 0x87D20001 SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 700 (0x02BC)
INFO: Raise Exchange Connector connection failure alert. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 700 (0x02BC)
ERROR: Failed to initialize managed com instance. Error = Unknown error 0x87D20001, -2016280575 SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 700 (0x02BC)
INFO: End to process wipe/policy https://exchange/powershell. SMS_EXCHANGE_CONNECTOR 29/04/2021 1:56:09 PM 700 (0x02BC)
Wait for inbox notification timed out. SMS_EXCHANGE_CONNECTOR 29/04/2021 2:01:08 PM 6432 (0x1920)
