[hashcash] [Bug 78816] Hashcash support for Kmail
- From: Adam Back <adam@xxxxxxxxxxxxxxx>
- To: hashcash <hashcash@xxxxxxxxxxxxx>
- Date: Sat, 11 Sep 2004 16:27:19 -0400
Some additional comments and/or votes in the kmail voting might help
get this back on track. (Someone closed it as a duplicate?? of a bug
in a kmail filtering system.)
It is not so easy to just add to an outgoing filter for good support.
Some progress indicator, caching of precomputed tokens, and early
start to computing (on clicking reply, or as recipients are entered)
would be required for good integration. (Actually think will add that
comment also).
Adam
----- Forwarded message from Adam Back <adam@xxxxxxxxxxxxxxx> -----
X-Original-To: adam@xxxxxxx
Delivered-To: adam@xxxxxxxxxxxx
Date: 11 Sep 2004 20:22:22 -0000
From: Adam Back <adam@xxxxxxxxxxxxxxx>
To: adam@xxxxxxxxxxxxxxx
Reply-To: 78816@xxxxxxxxxxxx
Subject: [Bug 78816] Hashcash support for Kmail
X-Bugzilla-URL: http://bugs.kde.org/
X-Bugzilla-Reason: Voter
In-Reply-To: <20040331171830.78816.max@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
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http://bugs.kde.org/show_bug.cgi?id=78816
------- Additional Comments From adam cypherspace org 2004-09-11 22:22 -------
I would like to reopen this bug.
The claims about hashcash ineffectivness appear wrong. Please read
http://www.hashcash.org/faq/
hashcash is not _just_ spamassassin, though spam assassin is one filtering
system that includes hashcash support as a means of avoiding false +ves. There
are many types of false positives. Mail config enforcement bounces, DNS config
bounces, IP blacklists, bayesian filter false +ves, etc etc. Hashcash can and
should be used to reduce the false positives in all of these to restore
reliability to email.
> My problem with spam is that spamassassin still doesn't catch all of it.
Specifically the _reason_ SA is not catching all of spam is because it is
configured to be conservative to avoid losing mail. As spam levels increase
(many claim as high as 10% a month!) spam filters will commonly be made less
descriminating to try reduce the volume reaching ISP users.
Another example bayesian filter: the one in mozilla routinely gives
non-negligible numbers of false positives. (We are also working on mozilla
hashcash accept and send support).
When hashcash reaches wider deployment on the filtering side sending stamps
will become increasingly important to achieve mail sending reliability.
I do not think this warrants closing as a duplicate of a filtering bug.
Direct support was the wish topic.
----- End forwarded message -----
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