Hello,
FYI:
Dim MyMapiMessage As MapiMessage = MapiMessage.Load(str, loadopt)
MyMapiMessage.Headers.Set("X-Mailer"...
Dim SignedMessage As MapiMessage = New Email.SecureEmailManager().AttachSignature(MyMapiMessage, MyC…...Save(out, saveopt) source msg: IPM.Task 3 Categories: Red Category...12:00:00 AM resulting destination msg: IPM.Note.SMIME.MultipartSigned...