C＃Outlook插件-在未发送该电子邮件的情况下将新项目创建到“已发送”框中

Question

I'm writing a plugin for outlook, I want to create new item into Sent Box but i don't want to send it, just save it to Sent Box.

Pls, help me!

Answer 1

Outlook Object Model will not, generally, let you create a message in the sent state - MailItem.Sent property is read-only. Even on the MAPI level (C++ or Delphi), MSGFLAG_UNSENT bit can be removed from the PR_MESSAGE_FLAGS property only before the message is saved for the very first time. The only kind of item created by OOM in the sent state is a post item, so in theory, you can create a post item, save it, reset its MessageClass property to "IPM.Note", dereference it, reopen by the entry id - you will now have a MailItem in the sent state. You will not have to set all the sender and recipient properties (about a dozen of them) and remove post specific properties - take a look at a sent message with OutlookSpy (click IMessage button).

If using Redemption (any language) is an option, it can create a fake sent message easily:

Set MySession = CreateObject("Redemption.RDOSession")
MySession.MAPIOBJECT = Application.Session.MAPIOBJECT
Set Folder = MySession.GetDefaultFolder(olFolderSentMail)
Set msg = Folder.Items.Add("IPM.Note")
msg.Sent = True
msg.Recipients.AddEx "The user", "user@domain.demo", "SMTP", olTo
msg.Sender = MySession.CurrentUser
msg.SentOnBehalfOf = MySession.CurrentUser
msg.subject = "Test sent message"
msg.Body = "test body"
msg.SentOn = Now
msg.ReceivedTime = Now
msg.Save