LinkedResource imageResource = new LinkedResource(logo, "image/jpeg"); > imageResource.ContentId = "mylogo"; > imageResource.TransferEncoding = TransferEncoding.Base64; >FileInfo logoFile = new FileInfo(logo); > >SmtpClient client = new SmtpClient(smtpClient, smtpPortInt); >MailMessage msg = new MailMessage(); >msg.To.Add(emailAddress); >msg.Subject = "My subject"; >string Body = "<img alt="My Logo" hspace=0 src="cid:mylogo" align=baseline border=0 > ><br /> ><h1>IMPORTANT NOTICE</h1>" >AlternateView htmlView = AlternateView.CreateAlternateViewFromString(Body, null, "text/html"); >htmlView.LinkedResources.Add(imageResource); >msg.AlternateViews.Add(htmlView); > >