Oracle Applications : Sending email from Procedure-Sample Code

CREATE OR REPLACE PROCEDURE SEND_MAIL_TCP (errbuf OUT VARCHAR2,
    retcode OUT VARCHAR2
      ) IS


msg_from     VARCHAR2(200) := 'sekhar.byna@gmail.com';
msg_to       VARCHAR2(200) :=info@ebiztechnics.com' ;
msg_subject  VARCHAR2(200) := 'Oracle Apps Support/training'  ;
msg_text     VARCHAR2(200) := 'this is text mail' ;
  c   UTL_TCP.CONNECTION;
  rc  INTEGER;
BEGIN
  c  := UTL_TCP.OPEN_CONNECTION('192.168.0.1', 80);       -- open the SMTP port 25 on local machine
  rc := UTL_TCP.WRITE_LINE(c, '192.168.0.1');
  rc := UTL_TCP.WRITE_LINE(c, 'MAIL FROM: '||msg_from);
  rc := UTL_TCP.WRITE_LINE(c, 'RCPT TO: '||msg_to);
  rc := UTL_TCP.WRITE_LINE(c, 'DATA');                  -- Start message body
  rc := UTL_TCP.WRITE_LINE(c, 'Subject: '||msg_subject);
  rc := UTL_TCP.WRITE_LINE(c, '');
  rc := UTL_TCP.WRITE_LINE(c, msg_text);
  rc := UTL_TCP.WRITE_LINE(c, '.');                  
  rc := UTL_TCP.WRITE_LINE(c, 'QUIT');
  UTL_TCP.CLOSE_CONNECTION(c);                        
EXCEPTION
  WHEN OTHERS THEN
    RAISE_APPLICATION_ERROR(-20000, 'Unable to send e-mail message from PL/SQL routine.');
END;