Send e-mail messages from PL/SQL (using UTL_TCP)

CREATE OR REPLACE PROCEDURE SEND_MAIL (
  msg_from    varchar2 := 'oracle',
  msg_to      varchar2,
  msg_subject varchar2 := 'E-Mail message from your database',
  msg_text    varchar2 := '' )
IS
  c  utl_tcp.connection;
  rc integer;
BEGIN
  c := utl_tcp.open_connection('127.0.0.1', 25);       -- open the SMTP port 25 on local machine
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  rc := utl_tcp.write_line(c, 'HELO localhost');
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  rc := utl_tcp.write_line(c, 'MAIL FROM: '||msg_from);
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  rc := utl_tcp.write_line(c, 'RCPT TO: '||msg_to);
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  rc := utl_tcp.write_line(c, 'DATA');                 -- Start message body
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  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, '.');                    -- End of message body
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  rc := utl_tcp.write_line(c, 'QUIT');
  dbms_output.put_line(utl_tcp.get_line(c, TRUE));
  utl_tcp.close_connection(c);                         -- Close the connection
EXCEPTION
  when others then
       raise_application_error(
           -20000, 'Unable to send e-mail message from pl/sql because of: '||
           sqlerrm);
END;
/
show errors

--  Examples:
set serveroutput on

exec send_mail(msg_to  =>'you@yourdomain.com');

exec send_mail(msg_to  =>'you@yourdomain.com',  -
       msg_text=>'Look Ma, I can send mail from plsql' -
              );