----- Original Message -----
From: "Dan Boresjo" <dan(_at_)boresjo(_dot_)demon(_dot_)co(_dot_)uk>
To: <spf-discuss(_at_)v2(_dot_)listbox(_dot_)com>
Sent: Saturday, January 17, 2004 7:08 PM
Subject: Re: [spf-discuss] Solving the Forwarding Problem for good!!!
On Saturday 17 January 2004 5:56 pm, Mark wrote:
Nope; you can drop the connection, of course, and have the connecting
mail server time out; but then you're probably even worse off, as the
connecting mail server will just keep trying to deliver the message.
Other than that, you will just have to wait the process out, until
/^\.$/ (in Perl terms).
Dropping the connection _and_ a one-time blacklisting of the sending IP
works, as the sender gives up after getting a "550 Blacklisted" the next
time it connects.
Yes, that might work (although the sender could be trying to send a new
message, the next time; not all that uncommon with spam). But such a scheme,
like grey-listing, stretches a bit beyond the standard SMTP protocol, of
course. :)
As wayne said, it would have been great if a separate HEADERS and BODY
command existed. The NNTP protocol, for example, has all three: ARTICLE,
BODY, and HEAD.
- Mark
System Administrator Asarian-host.org
---
"If you were supposed to understand it,
we wouldn't call it code." - FedEx
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