Error Message

20/10/2016 20:09:30.252[4588][H]: HDR:SYNC:ARC: Synchronization failed (COM error):: 0x8007000E 
20/10/2016 20:09:30.252[4588][H]: HDR: Sync status:-1 

20/10/2016 20:09:31.743[4588][H]: HDR: Unable to cleanup cache - will be locked 
: 0x8007000E 
20/10/2016 20:09:31.743[4588][H]: HDR: Sync status:-2 
20/10/2016 20:09:31.743[4588][H]: HDR:SYNC:ARC: End '1D430FB47841AEA46BC607F37BABA2EB51110000EV01' ('John User'):FAILED 

20/10/2016 20:12:00.138[4812][H]: HDR:PST: Exception caught opening MDC file (COM error):: 0x8007000E 
20/10/2016 20:12:00.139[4812][H]: HDR:PST: Failed to open existing MDC file: C:\Users\juser\AppData\Local\KVS\EnterpriseVault\D4D2711190E5BF44BD8988DFED7ADAAC\1D430FB47841AEA46BC607F37BABA2EB51110000EV01.mdc 
20/10/2016 20:12:00.242[4812][H]: HDR: Loading corrupt MDC for archive: 1D430FB47841AEA46BC607F37BABA2EB51110000EV01 
20/10/2016 20:12:00.406[5668][H]: TRAWL: Processing folder: Inbox 
20/10/2016 20:12:00.465[4812][H]: HDR:PST: Exception caught opening MDC file (COM error):: 0x8007000E 
20/10/2016 20:12:00.466[4812][H]: HDR:PST: Opened corrupt MDC file: C:\Users\juser\AppData\Local\KVS\EnterpriseVault\D4D2711190E5BF44BD8988DFED7ADAAC\1D430FB47841AEA46BC607F37BABA2EB51110000EV01.mdc 
20/10/2016 20:12:00.468[4812][H]: HDR: MDC file ok, but bad config. for archive: 1D430FB47841AEA46BC607F37BABA2EB51110000EV01 
20/10/2016 20:12:00.470[4812][H]: HDR: Releasing MDC for archive: 1D430FB47841AEA46BC607F37BABA2EB51110000EV01 

20/10/2016 20:14:42.650[14060][H]: EVMSP: [Policy::IsOpAllowed] Operation: InterStoreItemMoveOrCopyInToBeArchived, Allowed: false 
20/10/2016 20:14:42.651[14060][H]: EVMSP: [Folder::CreateMessage] A COM error exception has been caught:8004011b 
20/10/2016 20:14:42.652[14060][H]: EVMSP: [Common::GetLastError] Returning text: This Vault Cache is corrupt. Contact your Help Desk. 
 

The main HEX code of 0x8007000E is the main issue here. It translates to: MAPI_E_NOT_ENOUGH_MEMORY 

There have been two scenarios to have caused this: 

1. A very large amount of folders in the Mailbox (10K +)
2. The user has too many Shared Mailboxes open in their Outlook profile

In scenario 1, Please connect with Enterprise vault Support

In scenario 2, the user must close/disconnect the excessive amount of Shared Mailboxes 
I.e., in one case, 9 Shared mailboxes were too many.

During a Vault Cache/Virtual Vault Synchronization, the process will fail during the Header synchronization when viewing the progress within Outlook. The errors below are found in the Client Trace.