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List:       james-user
Subject:    Re: jSPF and James?
From:       "Tom Brown" <tombrown52 () gmail ! com>
Date:       2006-12-22 18:38:24
Message-ID: fe8001720612221038g4c7e846ei544d9c4a35389d02 () mail ! gmail ! com
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SPF is a system for specifying which servers are allowed to send mail
on behalf of any domain. SPF publishes a list of servers in the DNS
system. The receiving server verifies that the sending server is in
the list.

Domain keys uses public/private key encryption to accomplish the same
task. The domain keys standard specifies how to publish a publish the
public key in a DNS record. The private key is used to create a
signature for each message. The signature can then be validated by the
receiving server.

Both systems can be used in parallel, and with anything anti-spam,
multiple approaches work better than any single approach.

Tom


On 12/22/06, JWM <techstuff@malcolms.com> wrote:
> How does Domain Keys Sender Verification differ from SPF?  Do they work in
> parallel?  Or do you chose one or the other?
>
> -----Original Message-----
> From: Tom Brown [mailto:tombrown52@gmail.com]
> Sent: Friday, December 22, 2006 10:32 AM
> To: James Users List
> Subject: Re: jSPF and James?
>
> Hi Guys!
>
> I just thought I'd mention that I've got an implementation of the
> Domain Keys sender verification standard about 95% completed (it
> correctly validates most messages, but some systems don't correctly
> interpret the signature).
>
> I wanted to include it with JAMES itself, but there was a question
> regarding licensing issues. Has there been any notice from the legal
> team regarding the domain keys licensing, or should I just begin to
> distribute it myself?
>
> Thanks!
>
> Tom
>
> On 12/22/06, JWM <techstuff@malcolms.com> wrote:
> > Norman,
> >
> > Thanks for the info.
> >
> > One last question regarding the SPF SMTPHandler.  If I get the latest
> trunk
> > build, is SPF just inherently built into server, and it automatically
> checks
> > all incoming mail against SPF records, etc. for the sending domain?  Or is
> > it an option that must be enabled?  (And the typical followup question to
> > that assuming config is required.... is the config stuff documented?)
> >
> > Parallel question.... I saw a forum post a few months back about adding a
> > graylisting implementation to james.  Can you bring me up to speed on
> where
> > that stands?  Is that in the current trunk as well?
> >
> > If you haven't figured it out yet.... I'm drowning in Spam... :-(
> > SpamAssassin was working pretty well a few months back, but the spammers
> > have apparently recently figured out ways around SpamAssassin... it's now
> > incorrectly passing about 100 spams per day per email address....
> >
> > Thanks again for all of your work and assistance.
> >
> >
> > -----Original Message-----
> > From: Norman Maurer [mailto:nm@byteaction.de]
> > Sent: Friday, December 22, 2006 12:50 AM
> > To: James Users List
> > Subject: Re: jSPF and James?
> >
> > No problem,
> >
> > trunk = current svn
> >
> > Just read:
> > http://james.apache.org/server/2.3.0/source-repository.html
> >
> > Or use a nightly build:
> > http://people.apache.org/builds/james/nightly/
> >
> > bye
> > Norman
> >
> > JWM schrieb:
> > > Sorry for the ignorance... I'm a java developer.  But I'm not familiar
> > with
> > > the term 'trunk'.  I assume it refers to a CVS build tree or similar.
> But
> > > could you give me a brief summary of what is involved in getting a build
> > > from the 'current trunk'?
> > >
> > > Thx
> > >
> > > -----Original Message-----
> > > From: Norman Maurer [mailto:nm@byteaction.de]
> > > Sent: Friday, December 22, 2006 12:22 AM
> > > To: James Users List
> > > Subject: Re: jSPF and James?
> > >
> > > Hi Randy,
> > >
> > > in the current trunk you can find a SMTPHandler which use the jSPF
> > > implementation to reject emails based on SPF. A mailet and matcher not
> > > exists yet.
> > >
> > > bye
> > > Norman
> > >
> > > randy roy schrieb:
> > >
> > >> Has anyone written a matcher/mailet that plugs the jSPF project into
> > >> James?
> > >> Or does it exist internally, and I just can't figure it out?
> > >>
> > >> It appears from the web site that the two projects are closely related
> > >> (they
> > >> share the same distribution tree).  But I'm rather surprised that I
> can't
> > >> find anything that explains how to glue the two together.  The only
> > >> documentation I can find for jSPF is in the readme, which has some
> > >> generic
> > >> java code for how to use it.  Do I really have to write my own
> > >> matcher/mailet from scratch?  Seems to me there would be some canned
> code
> > >> already available.
> > >>
> > >> _________________________________________________________________
> > >> Dave vs. Carl: The Insignificant Championship Series.  Who will win?
> > >>
> > >>
> > >
> >
> http://clk.atdmt.com/MSN/go/msnnkwsp0070000001msn/direct/01/?href=http://dav
> > > evscarl.spaces.live.com/?icid=T001MSN38C07001
> > >
> > >>
> > >> ---------------------------------------------------------------------
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> > >>
> > >> !EXCUBATOR:1,458b4f1744679445312937!
> > >>
> > >
> > >
> > >
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> > >
> > >
> > >
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> > >
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> > >
> >
> >
> >
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> >
> >
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> >
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