Code: MAPI_E_UNKNOWN_FLAGS == 0x80040106

[timjethen]

I'm running into an issue where my old/dismissed reminders come back every time I restart outlook. I'm trying to resolve the issue per resolution 2 on https://learn.microsoft.com/en-us/exchange/troubleshoot/calendars/cannot-dismiss-outlook-calendar-reminders. When I try to delete the reminders folder via mfcmapi (64-bit version 24.0.24100.06) I get the following error:

Error:
Code: MAPI_E_UNKNOWN_FLAGS == 0x80040106
Function lpParentFolder->DeleteFolder( static_cast(itemEID.size()), mapi::toEntryID(itemEID), lpProgress ? reinterpret_cast<ULONG_PTR>(m_hWnd) : NULL, lpProgress, ulFlags)
File C:__w\1\s\MFCMAPI\UI\Dialogs\HierarchyTable\MsgStoreDlg.cpp
Line 797

[stephenegriffin]

@timjethen what flags are you passing and what variations have you tried?

[timjethen]

Only tried the default flags other than making sure MDB_ONLINE and MAPI_NO_CACHE were set per instructions. I didn't make the connection between the tools->options and flags referred to in the error code. Selected options are:

Parse named properties
Register for notifications when you navigate to a folder
Enable Smart View
Use GetPropList for GetProps call
Prefer Unicode properties
Cache named property mappings
Use 'nice' column names
Use the MDB_ONLINE flag when calling OpenMsgStore
Use the MAPI_NO_CACHE flag when calling OpenEntry
Suppress MAPI_E_NOT_FOUND in contents table views
Terminate on heap corruption
Load add-ins

Any you would suggest clearing?