UTL_MAIL does not take comma separated email addresses

Question

Hi, there,
I tried email multiple email addresses through UTL_MAIL, but ran into the following error:
begin
UTL_MAIL.SEND
( sender => '[email protected]'
, recipients => '[email protected], [email protected]'
, cc => null
, subject => 'test'
, message => 'this is a test');
end;
Error starting at line 2 in command:
begin
UTL_MAIL.SEND
( sender => '[email protected]'
, recipients => '[email protected], [email protected]'
, cc => null
, subject => 'test'
, message => 'this is a test');
end;
Error report:
ORA-29279: SMTP permanent error: 550 5.7.1 Unable to relay
ORA-06512: at "SYS.UTL_SMTP", line 20
ORA-06512: at "SYS.UTL_SMTP", line 98
ORA-06512: at "SYS.UTL_SMTP", line 240
ORA-06512: at "SYS.UTL_MAIL", line 414
ORA-06512: at "SYS.UTL_MAIL", line 608
ORA-06512: at line 2
29279. 00000 - "SMTP permanent error: %s"
*Cause:    A SMTP permanent error occurred.
*Action:   Correct the error and retry the SMTP operation.
However, I checked the Oracle UTL_MAIL reference at:
http://download.oracle.com/docs/cd/B12037_01/appdev.101/b10802/u_mail.htm#996885
When it comes to 'recipients' parameter, it reads:
The email addresses of the recipient(s), separated by commas.
As you can see in my source code, I did use comma to separate the two email addresses. So what's wrong?
The configuration of UTL_MAIL has been done. In fact, I can use UTL_MAIL to send email to any single email address.
Thanks!
Alex

Answer 1

alexlizn wrote:
ORA-29279: SMTP permanent error: 550 5.7.1 Unable to relayThis error means that you are specifying an e-mail address that the server refuses to accept, as it would have to relay (forward) the mail message to that domain.
This is a counter spam measure. Open relay means that the SMTP server accepts mail delivery on behalf of any domain. Which means it can be used to send millions of e-mails to 100's of 1000's of domains.. and this SMTP server will happily accept the mail and deliver it to all these domains. (see http://www.eudora.com/techsupport/kb/1593hq.html for a complete description).
Today, an open SMTP relay will get you blacklisted/blackholed - meaning that no domain (subscribing to these lists) will accept mail from your SMTP server's domain.
Have a chat to your mail admin. Your code/data is violating some or other relay rule.