> Bernstein claims that this is a requirement of RFC 821.
Now, i'm not sure what Bernstein wrote, but i doubt he wrote that
a MTA is not allowed to reject a mail at SMTP level.
> He claims that a 200 response is a guarantee that the mail has
> been received so qmail-queue writes the mail to disk and reads
> it back.
But this has nothing to do with the case where a mail should
really be bounced. The real problem here is, that qmail has
strict privilege seperation and qmail-smtpd is unable to check
a recipient on purpose. Therefore it needs to accept the
message first, and qmail-queue will bounce it, if necessary.
Regards
Michael
--
It's an insane world, but i'm proud to be a part of it. -- Bill Hicks
