New Post: the attachment.Download method delete the attachment content

    For Each att As ImapX.Attachment In m.Attachments

                ' before the download, FileSize > 0 
                att.Download()

                ' now, FileSize = 0

                att.Save("c:\_myfolder", att.FileName)    ' save an empty file
                daticert = System.Text.Encoding.Default.GetString(att.FileData)   ' return an empty string

    Next