Laszlo Kupor:
> Everything works nice, but bounce. Bouncing works, but communicate the
> local address with the outer world which not acceptable.
Sorry, it is bad practice to throw away all delivery error reports.
> I can send Bounce message with MTA (postfix) but this contains delivery
> status in BODY. not in HEADER. (please review). This DS not an message
> type this is a part (not mandatory) of bounce. And source not the
> destination mailbox. Source is postmaster.
As required by the Internet mail standard, the sender address MUST
be the null envelope sender address, not the recipient. Otherwise,
bounce messages could go into an infinite loop.
Postfix error reports are formatted per RFC 3462..3464. Other MTAs
use a home-grown format that provide similar information. All
MTAs send the failed recipient in the body.
You may solve your recipient disclosure problem a way by hacking
the bounce daemon to report the ORGINAL recipient instead of the
FINAL recipient, but that is about as much rope as I am willing to
supply.
Wietse
