try {
            Process p = Runtime.getRuntime().exec(new String[]{
                    "/usr/sbin/sendmail",
                    "-t"
            });
            try (OutputStreamWriter os = new OutputStreamWriter(p.getOutputStream(), "UTF8")) {
                os.write("Content-Type: text/html\n");
                os.write("From: abc@gmail.com\n");
                os.write("To: abc@gmail.com\n");
                os.write("CC: abc@gmail.com\n");
                os.write("BCC: abc@gmail.com, abcd@gmail.com\n");
                os.write("Subject: This is subject\n");
                os.write("\n");
                os.write("Dear \n");
                os.write("This is just a example \n");
            }
            p.waitFor();
        } catch (IOException | InterruptedException e) {
            log.error(null, e);
        }