MailMessage Mail = new MailMessage(); Mail.From = new MailAddress("[email protected]"); Mail.To.Add("[email protected]"); Mail.Subject = "This is Image Test."; Mail.Body = "This is the body of the email"; LinkedResource LinkedImage = new LinkedResource(@"J:\My Documents\Advika1.jpg"); LinkedImage.ContentId = "MyPic"; AlternateView htmlView = AlternateView.CreateAlternateViewFromString("You should see image next to this line. <img src=cid:MyPic>", null, "text/html"); htmlView.LinkedResources.Add(LinkedImage); Mail.AlternateViews.Add(htmlView); SmtpClient smtp = new SmtpClient("111.111.111.111", 25); try { smtp.Send(Mail); } catch (SmtpException ex) { throw ex; }