Re: [Exim] Re: Malformed SMTP response

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Author: Marc MERLIN
Date:  
To: Marc Haber
CC: exim-users
Subject: Re: [Exim] Re: Malformed SMTP response
On Sat, Dec 08, 2001 at 11:58:54AM +0100, Marc Haber wrote:
> People keep saying that this is a spam filtering measure. Clueless
> idiots, and I can't even block them :-(


Of course, you can. SMTP Callback does that very well.

If you add my patch on top:
ftp://ftp.vasoftware.com/pub/people/merlin/exim-3.31-woody-99.1/
(see README and the two diff files)

The culprit will have his mail rejected with a very explicit error:
+              sender_verify_callback_error =
+              string_sprintf("response from %s [%s] after \"MAIL FROM: <>\" was \"%s\". This does not help fight spam effectively, breaks RFCs, and prevents you from getting bounces so we can't accept mail from you",
+        host->name, host->address, big_buffer);


Marc
--
Microsoft is to operating systems & security ....
                                      .... what McDonalds is to gourmet cooking


Home page: http://marc.merlins.org/ | Finger marc_f@??? for PGP key