Oracle Database Discussions

Hi I created one proceudre to send mail using sample code using utl_smtp package but i am getting following erorr SMTP transient error: i installed SMTP servcies from add ISS components but getting the below errorr.I am not getting which service not available and i asked network admin to add my ip in the smtpserver


UTL_SMTP.TRANSIENT_ERROR
ORA-29278: SMTP transient error: 421 Service not available


CREATE OR REPLACE PROCEDURE SEND_MAIL (
msg_to varchar2,
msg_subject varchar2,
msg_text varchar2 )
IS
c utl_smtp.connection;
rc integer;
msg_from varchar2(50) := 'ron@gmail.com';
mailhost VARCHAR2(30) := '127.0.0.1'; -- local database host
BEGIN
c := utl_smtp.open_connection(mailhost, 25); -- SMTP on port 25
utl_smtp.helo(c, mailhost);
utl_smtp.mail(c, msg_from);
utl_smtp.rcpt(c, msg_to);
utl_smtp.data(c,'From: Oracle Database' || utl_tcp.crlf ||
'To: ' || msg_to || utl_tcp.crlf ||
'Subject: ' || msg_subject ||
utl_tcp.crlf || msg_text);
utl_smtp.quit(c);
EXCEPTION
WHEN UTL_SMTP.INVALID_OPERATION THEN
dbms_output.put_line(' Invalid Operation in Mail attempt
using UTL_SMTP.');
WHEN UTL_SMTP.TRANSIENT_ERROR THEN
dbms_output.put_line(' Temporary e-mail issue - try again');
WHEN UTL_SMTP.PERMANENT_ERROR THEN
dbms_output.put_line(' Permanent Error Encountered.');
END;
/

rgds
sham