Re: [mailop] Cyren

[Michael Grant via mailop]

I don't see any changes in our use of Cyren yet, but the writing is on
the wall and we are forced to move on.  I don't see anything like all
Swiss messages blocked or marked as spam.

All of our contacts at Cyren are no longer there.


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Re: [mailop] Cyren

[Mike Hillyer via mailop]

I could see someone programming their filters to add points if they get no 
response from Cyren, just to prevent things from slipping through in case the 
service was temporarily down. Not how I'd do it, but I could imagine such a 
scenario.

Mike

-Original Message-
From: mailop  On Behalf Of Benoit Panizzon via mailop
Sent: Monday, February 13, 2023 11:18 AM
To: Al Iverson 
Cc: Carsten Schiefner via mailop 
Subject: Re: [mailop] Cyren

> This is a good hypothesis but so far I have not seen any absolute 
> confirmation that they are "listing the world." I guess we will see...

I fear this is the case. I have contacted the ISP in question whose ctasd 
instance was adding 6 SpamAssassin Points to every email sent by their customer.

They immediately disabled the ctasd check.

Mit freundlichen Grüssen

-Benoît Panizzon-
-- 
I m p r o W a r e   A G-Leiter Commerce Kunden
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Re: [mailop] Cyren

[Ken Simpson via mailop]

Hi Benoit

We aren't hearing any specific reports of failure like this; however, for
anyone concerned, we have an SSL-secured ctasd endpoint that implements the
ctasd protocol but is backed by a different filter.

Reach out to me for details.

Regards,
Ken

On Mon, Feb 13, 2023 at 8:21 AM Benoit Panizzon via mailop <
mailop@mailop.org> wrote:

> > This is a good hypothesis but so far I have not seen any absolute
> > confirmation that they are "listing the world." I guess we will see...
>
> I fear this is the case. I have contacted the ISP in question whose
> ctasd instance was adding 6 SpamAssassin Points to every email sent by
> their customer.
>
> They immediately disabled the ctasd check.
>
> Mit freundlichen Grüssen
>
> -Benoît Panizzon-
> --
> I m p r o W a r e   A G-Leiter Commerce Kunden
> __
>
> Zurlindenstrasse 29 Tel  +41 61 826 93 00
> CH-4133 PrattelnFax  +41 61 826 93 01
> Schweiz Web  http://www.imp.ch
> __
> ___
> mailop mailing list
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>


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Ken Simpson

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Re: [mailop] Cyren

[Benoit Panizzon via mailop]

> This is a good hypothesis but so far I have not seen any absolute
> confirmation that they are "listing the world." I guess we will see...

I fear this is the case. I have contacted the ISP in question whose
ctasd instance was adding 6 SpamAssassin Points to every email sent by
their customer.

They immediately disabled the ctasd check.

Mit freundlichen Grüssen

-Benoît Panizzon-
-- 
I m p r o W a r e   A G-Leiter Commerce Kunden
__

Zurlindenstrasse 29 Tel  +41 61 826 93 00
CH-4133 PrattelnFax  +41 61 826 93 01
Schweiz Web  http://www.imp.ch
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Re: [mailop] Cyren

[Al Iverson via mailop]

This is a good hypothesis but so far I have not seen any absolute
confirmation that they are "listing the world." I guess we will see...

Cheers,
Al Iverson

On Mon, Feb 13, 2023 at 2:53 AM Benoit Panizzon via mailop
 wrote:
>
> Hi All
>
> I have started seeing a lot of emails sent via one Swiss ISP flagged as
> spam by the SpamAssassin CTASD, which according to Google, is Cyren's
> anti spam service.
>
> Have they started flagging all emails as spam to tell their customer to
> stop using their service?
>
> Mit freundlichen Grüssen
>
> -Benoît Panizzon-
> --
> I m p r o W a r e   A G-Leiter Commerce Kunden
> __
>
> Zurlindenstrasse 29 Tel  +41 61 826 93 00
> CH-4133 PrattelnFax  +41 61 826 93 01
> Schweiz Web  http://www.imp.ch
> __
> ___
> mailop mailing list
> mailop@mailop.org
> https://list.mailop.org/listinfo/mailop



-- 

Al Iverson / Deliverability blogging at www.spamresource.com
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Re: [mailop] DKIM record IONOS

[Faisal Misle via mailop]

Correct, DMARC at none will only send XML reports that tell you if a message 
had an aligned SPF/DKIM and if it authenticated properly. It will also show you 
if anyone else is sending as your domain that you weren't aware of.

I highly recommend using a tool like Postmark's free DMARC reporting (or 
something like what my employer, Red Sift offers, if you need more visibility).

Best,
Faisal

On Sun, Feb 12, 2023, at 1:42 AM, H via mailop wrote:
> On 02/11/2023 01:55 AM, Gellner, Oliver via mailop wrote:
>> 
>>> On 2023-02-11 02:51 H via mailop wrote:
>>> 
>>> On 02/10/2023 10:13 AM, Gellner, Oliver via mailop wrote:
 On 2023-02-10 04:08, H via mailop wrote:
 
> I now did find that resource but it is written as general information and 
> does not really tell how to get it going with IONOS if they run the email 
> server...
> 
 As far as I understood you not only use Ionos as your registrar, but also 
 use their email server to send your email through. Ionos does not DKIM 
 sign emails on behalf of its customers, at least they didn't do so in the 
 past. So the answer is simple: You do not set up DKIM or DMARC at all, 
 because you can't.
 The instructions given by Ionos are only valid if your email is sent and 
 signed by some other server and you want to add the DKIM public key to 
 your domain hosted at Ionos.
 
 --
 BR Oliver
 
>>> Thank you, you are starting with the first issue, ie whether I can even 
>>> have a DKIM record given that the domain is hosted by Ionos as is the mail 
>>> server. Upon my additional research I have come to the same conclusion as 
>>> you, ie not possible.
>>> 
>>> By the way, I stumbled across this posting on the net - 
>>> https://serverfault.com/questions/1030262/record-dkim-on-ionos-makes-sense 
>>> - that as far as I can tell is still true.
>>> 
>>> So, I will now look at creating a DMARC record given that I have previously 
>>> created a SPF record and will not be able to have a DKIM record.
>>> 
>> I recommend against setting up a DMARC record with a policy of quarantine or 
>> reject as long as DKIM signing isn‘t in place. The SPF authentication will 
>> break for all forwarded messages as well as for all automatic replies or 
>> non-delivery reports. It will do mire harm than good.
>> Of course if you‘re interested in the reporting you can create a DNARC 
>> record with a none policy and only change that after you have moved to a 
>> different email provider who supports DKIM.
>> 
>> — 
>> BR Oliver
>> 
>> 
>> *dmTECH GmbH*
>> Am dm-Platz 1, 76227 Karlsruhe * Postfach 10 02 34, 76232 Karlsruhe
>> *Telefon *0721 5592-2500 * Telefax *0721 5592-2777
>> *_dmt...@dm.de _* ** **_www.dmTECH.de 
>> _*
>> *GmbH: *Sitz Karlsruhe, Registergericht Mannheim, HRB 104927
>> *Geschäftsführer: *Christoph Werner, Martin Dallmeier, Roman Melcher
>> 
>> *Datenschutzrechtliche Informationen*
>> Wenn Sie mit uns in Kontakt treten, beispielsweise wenn Sie an unser 
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>> Rechten sowie die Kontaktdaten unserer Datenschutzbeauftragten finden Sie 
>> hier 
>> .
>> 
>> 
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>> 
> I see. As I am sure everyone has noticed, I am a complete newbie to 
> SPF/DKIM/DMARC (and a lot of other things.)
> 
> Understanding your message, creating a DMARC with "none" policy would not 
> have any downside? When you say "reporting", what type of reporting would 
> that be and how could I benefit from such reporting?
> 
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Re: [mailop] Cyren

[Suresh Ramasubramanian via mailop]

It has shut down and laid off all its employees

I don’t know what poor soul is still using them to filter spam but it won’t 
work any longer

--srs

From: mailop  on behalf of Benoit Panizzon via 
mailop 
Sent: Monday, February 13, 2023 2:13:30 PM
To: Carsten Schiefner via mailop 
Subject: Re: [mailop] Cyren

Hi All

I have started seeing a lot of emails sent via one Swiss ISP flagged as
spam by the SpamAssassin CTASD, which according to Google, is Cyren's
anti spam service.

Have they started flagging all emails as spam to tell their customer to
stop using their service?

Mit freundlichen Grüssen

-Benoît Panizzon-
--
I m p r o W a r e   A G-Leiter Commerce Kunden
__

Zurlindenstrasse 29 Tel  +41 61 826 93 00
CH-4133 PrattelnFax  +41 61 826 93 01
Schweiz Web  http://www.imp.ch
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Re: [mailop] Cyren

[Benoit Panizzon via mailop]

Hi All

I have started seeing a lot of emails sent via one Swiss ISP flagged as
spam by the SpamAssassin CTASD, which according to Google, is Cyren's
anti spam service.

Have they started flagging all emails as spam to tell their customer to
stop using their service?

Mit freundlichen Grüssen

-Benoît Panizzon-
-- 
I m p r o W a r e   A G-Leiter Commerce Kunden
__

Zurlindenstrasse 29 Tel  +41 61 826 93 00
CH-4133 PrattelnFax  +41 61 826 93 01
Schweiz Web  http://www.imp.ch
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