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[Bug 6806] New: Public Blacklist for Email addresses

 

 

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bugzilla-daemon at bugzilla

Jun 12, 2012, 11:51 PM

Post #1 of 4 (191 views)
Permalink
[Bug 6806] New: Public Blacklist for Email addresses

https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6806

Priority: P2
Bug ID: 6806
Assignee: dev [at] spamassassin
Summary: Public Blacklist for Email addresses
Severity: enhancement
Classification: Unclassified
OS: Linux
Reporter: frank.urban [at] commerzbank
Hardware: PC
Status: NEW
Version: unspecified
Component: spamassassin
Product: Spamassassin

Hi,

today most SPAM passing SpamAssassin is send from real existing Freemail
addresses.
I'm now looking for a way to put them on a public Blacklist and not in our own
SpamAssassin config.
In a first step I thought check_rbl_envfrom can help here, but I seemed that
only the domain is checked here and not the whole address.
Because the @ can not be part of a DNS name I think thats the problem here.
So the next idear is to build a hash code for each email address and put this
code on a blacklist, but how can this handeled by SpamAssassin?

Frank

--
You are receiving this mail because:
You are the assignee for the bug.


underspell at gmail

Jun 13, 2012, 1:43 PM

Post #2 of 4 (173 views)
Permalink
Re: [Bug 6806] New: Public Blacklist for Email addresses [In reply to]

You can consider http://www.dkim-reputation.org/ that goes a step forward.
Not truly sure about the project status and/or the quality of that
reputation they provide but, at least, you can take a look on the SA plugin
they provide.

José Borges Ferreira

On Wed, Jun 13, 2012 at 7:51 AM,
<bugzilla-daemon [at] bugzilla>wrote:

> https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6806
>
> Priority: P2
> Bug ID: 6806
> Assignee: dev [at] spamassassin
> Summary: Public Blacklist for Email addresses
> Severity: enhancement
> Classification: Unclassified
> OS: Linux
> Reporter: frank.urban [at] commerzbank
> Hardware: PC
> Status: NEW
> Version: unspecified
> Component: spamassassin
> Product: Spamassassin
>
> Hi,
>
> today most SPAM passing SpamAssassin is send from real existing Freemail
> addresses.
> I'm now looking for a way to put them on a public Blacklist and not in our
> own
> SpamAssassin config.
> In a first step I thought check_rbl_envfrom can help here, but I seemed
> that
> only the domain is checked here and not the whole address.
> Because the @ can not be part of a DNS name I think thats the problem here.
> So the next idear is to build a hash code for each email address and put
> this
> code on a blacklist, but how can this handeled by SpamAssassin?
>
> Frank
>
> --
> You are receiving this mail because:
> You are the assignee for the bug.
>


me at junc

Jun 13, 2012, 2:11 PM

Post #3 of 4 (175 views)
Permalink
Re: [Bug 6806] New: Public Blacklist for Email addresses [In reply to]

Den 2012-06-13 22:43, Jose Borges Ferreira skrev:
> You can consider http://www.dkim-reputation.org/ [4] that goes a
> step forward.

not sure here

> Not truly sure about the project status and/or the quality of that
> reputation they provide but, at least, you can take a look on the SA
> plugin they provide.

it needs more public testing works, both on client and server side to
be usefull, currently the sa plugin supports more then one dkim-rep
server to be queried, but there is no public source to support it


underspell at gmail

Jun 13, 2012, 3:11 PM

Post #4 of 4 (173 views)
Permalink
Re: [Bug 6806] New: Public Blacklist for Email addresses [In reply to]

On Wed, Jun 13, 2012 at 10:11 PM, Benny Pedersen <me [at] junc> wrote:

> Den 2012-06-13 22:43, Jose Borges Ferreira skrev:
>
>> You can consider http://www.dkim-**reputation.org/<http://www.dkim-reputation.org/>[4] that goes a
>> step forward.
>>
>
> not sure here
>
> I was referring to the fact that is not limited to freemail domains but to
all domains that support DKIM. DKIM can assure that email is from the
domain it claims to be.

>
> Not truly sure about the project status and/or the quality of that
>> reputation they provide but, at least, you can take a look on the SA
>> plugin they provide.
>>
>
> it needs more public testing works, both on client and server side to be
> usefull, currently the sa plugin supports more then one dkim-rep server to
> be queried, but there is no public source to support it
>
>
> The original email from Frank asked:
"build a hash code for each email address and put this code on a blacklist,
but how can this handeled by SpamAssassin?" .

The dkim-reputation project has solve that problem and the SA plugins they
provide show how can it be handled.
Build a reputation system is a completely different thing, although the
opendkim project (started in version 2.5.0 ) has some simple implementation
of a reputation system.

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