Erwin Authried:
> > Is this the reply to DATA or end-of-data? If it is DATA, then
> > address verification is possible but it requires source code
> > changes to Postfix:
> >
> > - After successful RCPT TO, do not assume that the recipient exists,
> > but send DATA and disconnect after the DATA response is received.
> >
> > This will cause extra noise in the logfile, therefore it should be
> > configurable:
> >
> > - Configure what sites reject recipients after DATA. The list of
> > such domains is limited, so this is not a big burden.
> >
>
> Shouldn't postfix reject a message in general if there is a 5xx response
> to the DATA command, instead of creating a bounce message?
Postfix address verification (via SMTP) never sends DATA. It sends
RSET/QUIT instead. Thus, the question makes no sense.
Wietse
