Enterprise Vault for Exchange: 'An internal error has occurred on the web server. error -2147023170' while retrieving migrated Domino items in Outlook

Problem

Error Message

The retrieve from Microsoft Outlook or from Enterprise Vault Search for the aforementioned items might fail with the following errors:

Error 1

This item was archived by Enterprise Vault on There was an error loading this item -- some functionality may not be available

Clicking on the 'banner' this fails with: 

An internal error occurred on the web server.

Error -2147023170 <date>

Error 2

Cannot download the archived item from ...CDownloadSTA::MakeCallbackImpl : DoDownload 0x80004005CDownloadSTA::MakeCallbackImpl : Ptr->Callback 0x8004010fUnknown error 0x8004010F

On the Enterprise Vault Server these Event IDs are logged:

Enterprise Vault event log:

Log Name: Veritas Enterprise Vault
Source: Enterprise Vault
Event ID: 6654
Task Category: Storage Server
Level: Warning
Computer: evarch1.ev.local
Description:Storage Online Process EVInstance04 (4) - Restarting failed processPID: 1824Exit Code: <0xc0000374>The process has failed abnormally and will be restarted automatically

AND

Log Name: Veritas Enterprise Vault
Source: Enterprise Vault
Event ID: 6287
Task Category: Web Application (WP)
Level: Warning
Computer: evarch1.ev.local
Description:Unable to fetch item from "evserver1.ev.local".Reason: The remote procedure call failed. (0x800706be)Saveset Id: 201705185115269~201611081038130000~Z~904759467CAFC27564EDB48822B5AAC1Archive Name: Test User4/veritasReference: GetOnlineAttachmentFileSize2

Application event log:

 Log Name: Application
 Source: Application Error
 Event ID: 1000
 Task Category: (100)
 Level: Error
 Computer: evarch1.ev.local
 Description:Faulting application name: StorageOnlineOpns.exe, version: 12.1.x.xxx, time stamp: 0x595643e2Faulting module name: ntdll.dll, version: 6.3.9600.18696, time stamp: 0x5915ecd6Exception code: 0xc0000374Fault offset: 0x000e61f4Faulting process id: 0x2364Faulting application start time: 0x01d30c446734f12bFaulting application path: C:\Program Files (x86)\Enterprise Vault\StorageOnlineOpns.exeFaulting module path: C:\Windows\SYSTEM32\ntdll.dllReport Id: bfc48e48-7837-11e7-811e-0050560db730Faulting package full name:Faulting package-relative application ID:

 V-437-6654
 V-437-6287

Cause

This is a known issue with Domino migrated items and Enterprise Vault versions 12.0 or 12.1

Solution