Hello,
Using sgn As MapiMessage = New Email.SecureEmailManager().AttachSignature(msg, CmsSigner, New SignatureOptions With {.Detached = True})
sgn.Save(SaveTextBoxX.Text, ASPSaveSetOFT)
End Using
Here source msg can …...either a MailMessage object or a MapiMessage object as input. Correspondingly...Correspondingly, it returns signed objects of the same type—either MailMessage...