'Controlling MSG file draft/sent state
Solution 1:[1]
By the time MailItem.Send
or Application.ItemSend
event fires, the mail is still unsent (you can cancel the submission). The earliest you can access the message in the sent state with the sender information populated is when it is moved to the Sent Items folder and the Items.ItemAdd
event fires.
On a more general note, in your case MailItem.Sent
property is false. OOM does not allow to change it at all. On the Extended MAPI level, the MSGFLAG_UNSENT
bit can be removed from the PR_MESSAGE_FLAGS
property only before the message is saved for the very first time (you can see the property in OutlookSpy - I am its author - if you click the IMessage button). This does not apply to messages saved as MSG files, and you can use Redemption (I am also its author) to change the flag (call RDOSession.GetMessageFromMsgFile
/ set RDOMail.Sent
property to true / call RDOMail.Save
)
Sources
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Source: Stack Overflow
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