[swinog] Anyone from pcloud.com Zug on this List

2024-05-17 Diskussionsfäden Benoît Panizzon via swinog
Hi

If anyone from pcloud.com is reading this list. Could you please
quickly get in contact with me?

I know why your domain is listed on the SWINOG URIBL. I would like to
look into the root cause.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Any contact to sunrise / chello.at / libertyglobal Postmaster

2024-01-12 Diskussionsfäden Benoît Panizzon via swinog
Hi

We have a case of emails reproducible disappearing to one specific
sunrise recipient.

The recipient is quite sure, he has not activated any filtering rule in
his sunrise webmail. He requests us as the ISP of the sender, to
investigate the issue 'from the source'.

We see in our logs:

mx0.sunrise.ch has address 213.46.255.61

is happily accepting the email with 200 OK. No late bounce can be found.

Does anyone know, how to contact chello.at for such issue? I have tried
the contacts registered @ RIPE for this range. They are either 'not in
charge and don't know who is' or do not respond.
Sunrise seems not to know how to open a case with chello for such an
issue (as last time we faced such an issue).

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: Email Outage @ NZZ?

2023-09-01 Diskussionsfäden Benoît Panizzon via swinog
Hi

Thanks for the help. Issue found. I hate Fail2ban!

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: Email Outage @ NZZ?

2023-09-01 Diskussionsfäden Benoît Panizzon via swinog
Hi

According to NZZ we are rejecting all emails with sender domain
@bounce.email.nzz.ch with "Receiving email server is temporarily
overwhelmed with delivery attempts, from you and other
senders". Unfortunately their feedback is very vague, no logs or
exact times of issue from their side.

I can't find any such emails in our log, but I see some are SRS
forwarded from bluewin, VTX, Hostpoint etc. and do reach us.
Unfortunately I have no access (without customer permission) to the
content and therefore can not glimpse at the email headers to find the
true origin.

Could somebody do me a favour: From which IP Address do you see emails
with envelope domain @bounce.email.nzz.ch being delivered?

It used to be salesforce: 13.111.14.63 until 17. August, but I fear
this changed, which causes the issue, as I have seen at least one email
delivered with this domain, failing SPF from an IP belonging to Liberty
Global Austria if this was not some broken forwarding attempt.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: DNSSEC auto-disabled by SWITCH on some .ch domains?

2023-05-03 Diskussionsfäden Benoît Panizzon via swinog
Am Mon, 1 May 2023 15:48:16 +0200
schrieb Benoît Panizzon via swinog :

> Some update
> 
> It looks like Gandi at least messed up their Registrar UI.

Gandi Support confirmed the issue. Their API is getting stuck while
trying to remove no longer existing DS entries from the ch TLD,
preventing adding new ones.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: DNSSEC auto-disabled by SWITCH on some .ch domains?

2023-05-01 Diskussionsfäden Benoît Panizzon via swinog
Hi Daniel

> The nerd answer is that you can use Automated DNSSEC Provisioning [1]
> to enable DNSSEC. This also sends an EPP poll message to your
> registrar to update locally cached state information about a domain
> name.

Yes, trying to understand, how I correctly get rid of my old RRSIG
entries without shooting myself in the foot, I came across this whole
new dnssec-policy and automatic publishing CDS records via Bind.

Not sure if I have yet fully understood the mechanics. But I have
tentatively set it up now and I'll see, if this somehow, by the magic
of the internet, caused my DS entries to get refreshed.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: DNSSEC auto-disabled by SWITCH on some .ch domains?

2023-05-01 Diskussionsfäden Benoît Panizzon via swinog
Some update

It looks like Gandi at least messed up their Registrar UI.

From their point of view, my 'algo 5' .ch domains have still DNSSEC
active but deleting DS or disabling DNSSEC hangs forever and upon
reloading my old algo 5 keys are back. I guess they perform some API
calls to Switch and this fails, because both disagree on the DNSSEC
status?

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: DNSSEC auto-disabled by SWITCH on some .ch domains?

2023-05-01 Diskussionsfäden Benoît Panizzon via swinog

Hey

> To the partners at least, in October 2022 informing them that
> anything containing digest-type 1 and/or key algorithm 5 oder 7 are
> no longer supported and will be deleted. This was done last week and
> digest-type 2 and key algorithm should be used. Since end of January
> 2023 you could not use them anymore.

Darn, thank you for the hint! I'm also affected and missed the phase out
of those algos.

Guess I have to read:
https://www.dns.cam.ac.uk/news/2020-01-15-rollover.html

I wonder why my registrar never noticed me he would delete my DS
records disabling DNSSEC on my domains.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Anyone IT/Email/Marketing contact at United Nations or Geneva Forum or Objectif Sciences International

2023-04-11 Diskussionsfäden Benoît Panizzon via swinog
Hi all

Does anyone have a contact to the IT or more precisely Email /
Marketing Department of the UN Geneva Forum aka Objectif Sciences
International?

https://www.osi-ngo.org/

They most probably have acquired an email list containing SWINOG
Spamtraps and using this to advertised their science activities, getting
shared Office365 IP addresses, used by the UN and other Swiss Office365
customers, blacklisted.

I was in contact with the OSI Geneva Forum CEO, but he was not
successful in finding anyone in charge.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: DNSSEC issue with swizzonic DNS servers?

2022-12-30 Diskussionsfäden Benoît Panizzon via swinog
Hi Markus

> the name server from swizzonic is not supposed to provide you with a 
> answer to all the queries.

I guess if I point to our recursive validating caching NS and it does
not possess this data in it's cache, it will start by following from
the root by asking for _.numberportability.ch to avoid revealing which
host it is exactly looking for until it reaches the authoritative DNS
for that zone and then ask this one directly for the desired RR.

I guess this is where something is breaking the chain.

I also don't see why the swizzonic DNS which is the authoritative
primary should not answer to all queries. Well of course the DNSSEC
chain (Signed DS entries) has to be followed from the root over ch. to
swizzonic. But everything else should be obtainable from the
authoritative server for that zone, right?

Right now, all needed RR within numberportability.ch resolve ok. So
maybe the now found and fixed he issue.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Re: DNSSEC issue with swizzonic DNS servers?

2022-12-29 Diskussionsfäden Benoît Panizzon via swinog
Hi Markus

Thank for the hint regarding the delv tool.

The issue is back this morning:

$ delv @dns1.swizzonic.ch www.numberportability.ch
;; chase DS servers resolving 'numberportability.ch/DS/IN': 
2a01:8100:2901::1:183:201#53
;; REFUSED unexpected RCODE resolving 'ch/NS/IN': 195.110.124.196#53
;; REFUSED unexpected RCODE resolving 'ch/NS/IN': 2a01:8100:2901::1:183:201#53
;; REFUSED unexpected RCODE resolving './NS/IN': 195.110.124.196#53
;; REFUSED unexpected RCODE resolving './NS/IN': 2a01:8100:2901::1:183:201#53
;; REFUSED unexpected RCODE resolving 'ch/DS/IN': 2a01:8100:2901::1:183:201#53
;; REFUSED unexpected RCODE resolving 'ch/DS/IN': 195.110.124.196#53
;; broken trust chain resolving 'numberportability.ch/DNSKEY/IN': 
195.110.124.196#53
;; broken trust chain resolving 'www.numberportability.ch/A/IN': 
2a01:8100:2901::1:183:201#53
;; resolution failed: broken trust chain

Does anyone have a contact to a DNS technician working @ Swizzonic.
Preferably with a phone number.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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[swinog] Anyone else having email issues with Metanet?

2022-12-02 Diskussionsfäden Benoît Panizzon via swinog
Hi List

Yes, I am already in contact with Metanet techs.

We have a very strange issue with two of their email servers.

Connecting to Port 25 starts fine. SYN, SYN-ACK but then we start
seeing re-transmits until the connections times out.

This first happened to one of their server, then to another one, the
the first server became reachable again at the beginning of this week,
the second one still causes the same problem.

The Problem also occurs the other way round. Metanet is unable to
establish tcp connection to port 25 on rrmx.imp.ch

Is anyone else seeing such an issue, either to metanet or towards our
rrmx.imp.ch?

Has anyone any clue what could cause such an issue?

I compared traces of tcp connections to both of the affected metanet
servers, to the working one and to the one causing re-transmits.
The two initial SYN and SYN-ACK look identical and then to one
destination the re-transmits start and to the other destination I get
the SMTP HELO banner.

PS: Yes, I did disable the firewall on our mail-plattform and re-test.
This does not seem to be the cause.

-- 
Mit freundlichen Grüssen

-Benoît Panizzon- @ HomeOffice und normal erreichbar
-- 
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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