How do I send meeting request by using additional mailbox address?

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Outlook

Hi,

 I tried to send a meeting request  from the mail box address (mail box address should come in from field) which is configured in my outlook using outlook interop.

If i use session. Account , it is giving only my default mail and it is not bringing my mailbox account ID. Please help.

What I have tried:

Code sample below

       Microsoft.Office.Interop.Outlook.Application olkApp1 = new Microsoft.Office.Interop.Outlook.Application();
                        Microsoft.Office.Interop.Outlook.MailItem olkMail1 = (Microsoft.Office.Interop.Outlook.MailItem)olkApp1.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
                        Outlook.Accounts accounts = olkApp1.Session.Accounts;
                        foreach (Outlook.Account account in accounts)
                        {
                            if (account.DeliveryStore.DisplayName == "XYZ@abc.com") // This is theSMTP addressof my mailbox
                            {
                                olkMail1.SendUsingAccount = account;
                                //((Outlook._AppointmentItem)appt).Send();
                                MessageBox.Show(account.SmtpAddress);
                                break;
                            }
                        }


How to send Meeting request by using additional mailbox address?