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Re: [spf-discuss] Re: Promoting NEUTRAL or SOFTFAIL result to FAIL

2006-02-27 17:05:28
On Mon, 27 Feb 2006, Mark Shewmaker wrote:

On Mon, 2006-02-27 at 14:53 -0500, Dick St.Peters wrote:

The workaround I use is to defer false-bounce checks until after the
DATA command (but before the data itself), using sendmail's
check_data.  At that point, $u isn't set, so you have to set your own
macro earlier.  I set mine in Local_check_rcpt.  Bounces and CBVs
involve only one recipient, making this easy.

Then that means you're breaking my CBV tests--making it look like all
possible MAIL FROM values from your domain are valid.

Yes, I used to do that, but while I was protected from bounce spam,
properly configured CBV MTAs lost the benefit of CBV, since all 
rcpts looked valid to them.  I have since changed pymilter to reject
RCPT immediately - and on my TODO list is exceptions for braindead
(or temporarily misconfigured) CBV senders - which I will probably
indentify by HELO name.

You have the right to do that of course, but I don't see what it really
gains you.

It gains not having your mail rejected by braindead or temporarily
misconfigured MTAs.

-- 
              Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.

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