Hi,
Would you tell me more about the changes? In my said, I try to use the code you provided, and the changes can be seen when I open the mail item. Here is the code I used:
private void button1_Click(object sender, EventArgs e)
{
Outlook.MailItem mailItem = (Outlook.MailItem)this.OutlookItem;
mailItem.Subject = "Test1";
(mailItem as Outlook._MailItem).Send();
}
You may tell me the reproduce steps.
Best regards,
Bessie
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