Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).

Durga Kinthada (CON) 10

Hi Team,

We Have created one .net core application which will read and process outlook inbox mails. It was deployed to windows scheduler.

So scheduler will run every three minutes and read inbox. On that note sometimes we are getting below issues. Please provide your suggestion.

Jiale Xue - MSFT 48,776 Reputation points Microsoft Vendor

2023-09-22T03:37:37.1033333+00:00

Hi @Durga Kinthada (CON) ,Welcome to Microsoft Q&A,

Are there more details? Since it happens sometimes, have you considered putting the running code into a try catch to handle or skip the error?

Subudhi, Pusparag 0

Hi. I our app we are trying to open a new outlook email window with prefilled content and attachments. Which user can modify and send. The code had been working for a long time with old version of outlook. With a recent upgrade to Office 365 outlook the code is failing with same error. We tried updating the com references for Microsoft.Office.Interop.Outlook but still no success . Please help to resolve the issue User's image

The code used for opening outlook is as below

public static void ShowOutlookEmail(string email, string subject, string body, 
            List<Attachment> attachments)
        {
            try
            {
                if (!IsOutlookInstalled())
                {
                    logger.Warn("Outlook is not installed");
                    throw new System.Exception("Outlook is not installed");
                }
                else
                {
                    OutlookApp outlookApp = new OutlookApp();
                    MailItem mailItem = outlookApp.CreateItem(OlItemType.olMailItem);
                    mailItem.To = email;
                    mailItem.Subject = subject;
                    mailItem.HTMLBody = body;
                    foreach (var attachment in attachments) mailItem.Attachments.Add(attachment.FilePath, DisplayName: attachment.Name);
                    mailItem.Display(false);
                }
            }
            catch (System.Exception ex)
            {
                logger.Error(ex, "Errors in opening outlook.");
                throw;
            }
        }

private static bool IsOutlookInstalled()         
{           
  Type officeType = Type.GetTypeFromProgID("Outlook.Application");
  if(officeType == null)                 
		return false;             
	return true;
}

2 answers

RLWA32 46,461 Reputation points

2023-09-21T14:15:59.8266667+00:00

Automating Office applications in a non-interactive environment (e.g., task scheduler) is not supported by Microsoft. See Considerations for server-side Automation of Office.
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KOZ6.0 6,580 Reputation points

2023-09-21T15:49:54.59+00:00

Create a program that resides in the task tray and launches it every 3 minutes.
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Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).

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