INFO: EDK Sends Read Receipt for Reading a Read Receipt

ID: Q238079

The information in this article applies to:

Exchange Development Kit (EDK), versions 5.0, 5.5

SUMMARY

The EDK sample gateway causes the creation of a read receipt while opening a read receipt message.

MORE INFORMATION

SDK samples located in the SDKDIR\samples\dbmsg\exchange\gwsample directory contain sample code for a gateway that is provided with the platform. With this sample code a gateway for the Microsoft Exchange Server can be built and configured for mail transfers.

In GWSample.c the return receipt is requested explicitly as in the function definition DWORD ProcessMtsIn(LPVOID lpParameter), see the following code fragments.

For a non-read receipt:


   else if((_tcsstr(lpszMessageClass, TEXT("REPORT.IPM")) != NULL) 
               && _tcsstr(lpszMessageClass, TEXT(".IPNNRN")) != NULL))
   {

            hr = HrMAPISetPropBoolean(
                (LPMAPIPROP)lpEnvelope,
                PR_NON_RECEIPT_NOTIFICATION_REQUESTED,
                TRUE);  

            if(FAILED(hr))
            {
                hr = HR_LOG(E_FAIL);
                goto cleanup;
            }

For a read receipt:


   else if((_tcsstr(lpszMessageClass, TEXT("REPORT.IPM")) != NULL) &&
                (_tcsstr(lpszMessageClass, TEXT(".IPNRN")) != NULL))
        {

            hr = HrMAPISetPropBoolean(
                (LPMAPIPROP)lpEnvelope,
                PR_READ_RECEIPT_REQUESTED,
                TRUE);  

            if(FAILED(hr))
            {
                hr = HR_LOG(E_FAIL);
                goto cleanup;
            }

Again, Ipm_in.dll in Convcls.cpp in the definition of function HRESULT CIPMConvert::HrSetEnvelopeProps() receipt is asked explicitly for a read receipt as well as a non-read receipt as shown in the following code fragment.


   if ( m_MsgType == mtNRN )   // have a non-read notification
        {
            rgEnvProps[iNotifyReqVal].ulPropTag = 
                PR_NON_RECEIPT_NOTIFICATION_REQUESTED;
        }
    
        else    // have a read notification
        {
            rgEnvProps[iNotifyReqVal].ulPropTag =
               PR_READ_RECEIPT_REQUESTED;
        }

        rgEnvProps[iNotifyReqVal].Value.b = TRUE;

Work Around

You need to modify the code to remove the explicit request of receipts for (non)read receipt and build a new Ipm_in.dll and GWSample.exe.

Additional query words: kbDSupport kbEDK kbXchge kbMsg kbEDK500 kbEDK550 kbGrpMsg


Keywords          : kbEDK kbXchge500 kbXchge550 kbMsg kbEDK500 kbEDK550 kbGrpMsg kbDSupport 
Version           : WINDOWS:5.0,5.5
Platform          : WINDOWS 
Issue type        : kbinfo

Last Reviewed: August 10, 1999