IMsgServiceAdmin::MsgServiceTransportOrder
Applies to: Outlook 2013 | Outlook 2016
Sets the order in which transport providers are called to deliver a message.
HRESULT MsgServiceTransportOrder(
ULONG cUID,
LPMAPIUID lpUIDList,
ULONG ulFlags
);
Parameters
cUID
[in] The count of unique identifiers in the lpUIDList parameter.
lpUIDList
[in] A pointer to an array of unique identifiers that represent transport providers. The array contains one identifier for each transport provider configured in the current profile.
ulFlags
[in] Reserved; must be zero.
Return value
S_OK
The transport order was set successfully.
MAPI_E_BUSY
The value in the cUID parameter differs from the number of transport providers actually in the profile.
MAPI_E_NOT_FOUND
One or more of the MAPIUID structures passed in the lpUIDList parameter do not refer to a transport provider currently in the profile.
Remarks
The IMsgServiceAdmin::MsgServiceTransportOrder method sets the delivery order of transport providers in a profile. The lpUIDList parameter must contain a sorted list of transport-provider entry identifiers obtained from the PR_PROVIDER_UID (PidTagProviderUid) property of the table returned from the IMsgServiceAdmin::GetProviderTable method. A client application must pass the complete list in lpUIDList.
SetTransportOrder overrides transport provider preferences such as the STATUS_XP_PREFER_LAST flag set in the PR_RESOURCE_FLAGS (PidTagResourceFlags) property.