It is possible to send emails with past dates using in domino using c#?

Question

When i try to send email with past dates using PostedDate the emails are sended with current date time and not with the date specified in the PostedDate field. It is possible to send the emails with past dates and is there any other ways are there? Since I want large data in the past to test backup functionality(it is really needed).

  static void CreateEmail(NotesDatabase userDatabase)
{
    if (!userDatabase.IsOpen)
    {
        userDatabase.Open();
    }
    NotesDocument LNDocument = userDatabase.CreateDocument();
    string[] recipients =
 {"contact1/test@test","contact2/test@test"};
    string emailSender = "sender@test.com";

    LNDocument.ReplaceItemValue("Form", "Memo");
    LNDocument.ReplaceItemValue("From", emailSender);
    LNDocument.ReplaceItemValue("SMTPOriginator", emailSender);
    LNDocument.ReplaceItemValue("Sender", emailSender);
    LNDocument.ReplaceItemValue("INetFrom", emailSender);
    LNDocument.ReplaceItemValue("Principal", emailSender);
    LNDocument.ReplaceItemValue("SendTo", recipients); //To field
    LNDocument.ReplaceItemValue("Subject", "Test Email"); //message subject
    LNDocument.ReplaceItemValue("Body", "Test Email Lotus Notes"); //set body text
    System.DateTime StartDate = new DateTime(2019, 12, 23, 7, 0, 0);
    LNDocument.ReplaceItemValue("PostedDate", StartDate);
    LNDocument.SaveMessageOnSend = true; //save message after it's sent
    LNDocument.Send(false,recipients ); //send
}

Answer 1

The answer is simple: Don't send them. The "PostedDate" item is an item that is automatically set by the router. You are not able to fake this date easily ("Hey, but I sent you the mail yesterday, look at the PostedDate..." ).

BUT: Instead of sending the mails you could simply directly create them in the recipients mailbox and set all the items as if it in deed had been sent.

The only additional thing the router does, is to put the mail in the inbox of the recipient, so you need to do that as well:

If you really want to keep the "sent" document in the senders database as well, then so something like this:

Instead of

LNDocument.SaveMessageOnSend = true; //save message after it's sent
LNDocument.Send(false,recipients ); //send

Write

NotesDatabase recipientDatabase
NotesDocument recipientDocument

LNDocument.Save(true,true,true); //save
// get the database of recipient here, lookup in ($User)- view 
// in names.nsf on server and get MailPath, write a function for this...
recipientDatabase = ....
recipientDocument = LNDocument.CopyToDatabase(recipientDatabase)
recipientDocument.PutInFolder( "($Inbox)" )