On Thu, Dec 28, 2000 at 11:10:37AM +1100, [EMAIL PROTECTED] wrote:
> question is: Is there anyway of notifying the person who sent the
> mail to you through the open relay, with a generic message that
> they were blocked. Say "Your message could not be processed by
> our server." If anyone could help with this it would be much
> appreciated.
rblsmtpd either rejects the message permanently (5xx code) or temporarily
(4xx code). Depending on the option you start rblsmtpd with and assuming
a correctly working smtpd on the sending side, the user will either
get a immediate failure notice on a 5xx code or a delayed one as soon as
the retry interval (typically around a week) of the sending smtpd has expired.
See
<URL:http://cr.yp.to/ucspi-tcp/rblsmtpd.html>
and especially the section on "Temporary errors" and the "-b -B" switches
for more information.
Note: a 4xx code is more "social" but may trigger bugs in some smtpds
(e.g. Microsoft SMTP) causing them to hammer on your smtpd with retries.
See: <URL:http://support.microsoft.com/support/kb/articles/Q224/9/83.ASP>
\Maex
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