Re: [mailop] "451 Requested action aborted: local error in processing" when submitting email to ionos email services.

2023-12-12 Thread Tobias Herkula via mailop
uple of more systems answering fine, this would also explain why it sometimes works and sometimes not. / Tobias Herkula Senior Product Owner Mail Security Product Management Mail Transfer & Mail Security 1&1 Mail & Media GmbH Hauptsitz Montabaur, Amtsgericht Montabaur, HRB 7666 Ge

Re: [mailop] Thoughts on envelope address local-part length limits

2023-05-15 Thread Tobias Herkula via mailop
ind of bad behavior. / Tobias -Original Message- From: mailop On Behalf Of Slavko via mailop Sent: Monday, May 15, 2023 2:39 PM To: mailop Subject: Re: [mailop] Thoughts on envelope address local-part length limits Dňa 15. mája 2023 7:44:07 UTC používateľ Tobias Herkula via

Re: [mailop] Thoughts on envelope address local-part length limits

2023-05-15 Thread Tobias Herkula via mailop
Be careful with references to Postels robustness principle and look into that https://datatracker.ietf.org/doc/html/draft-iab-protocol-maintenance (formally known as "postel-was-wrong") And if you reference 4.5.3.1, you should not omit "Objects larger than these sizes SHOULD be avoided when

Re: [mailop] GMX/Mail.com contact?

2023-05-15 Thread Tobias Herkula via mailop
Feel free to reach out to mailsecur...@gmxnet.de<mailto:mailsecur...@gmxnet.de> / Tobias Herkula Senior Product Owner Mail Security Mail Application Security 1&1 Mail & Media From: mailop On Behalf Of Mike Hillyer via mailop Sent: Friday, May 12, 2023 10:29 PM To: mailop Subject

Re: [mailop] Receivers behavior when seeing a new header

2023-05-04 Thread Tobias Herkula via mailop
From Domain aligned DKIM signature. / Tobias Herkula Senior Product Owner Mail Security Mail Application Security 1&1 Mail & Media GmbH -Original Message- From: mailop On Behalf Of Benjamin BILLON via mailop Sent: Thursday, May 4, 2023 3:36 PM To: mailop@mailop.org Subject: [mailo

Re: [mailop] A guy from GMX at the list?

2023-04-24 Thread Tobias Herkula via mailop
Hi Florian, For which DKIM signing Domains you see issues? And what are your IP-Ranges? Feel free to answer off list, if you don't want to disclose this information. -Original Message- From: mailop On Behalf Of Postmaster florian-pankerl.tk via mailop Sent: Friday, April 21, 2023 2:12

Re: [mailop] Should mailing list messages be DKIM signed? (ARC / DKIM)

2023-02-17 Thread Tobias Herkula via mailop
You don't need ARC if you are munging the 5322.From, but if you are munging the 5322.From add a strict aligned DKIM signature, this makes it easy to filter and trust your lists traffic. If you run multiple lists on the same domain, please do strict alignment between 5322.From AddrSpec and the

Re: [mailop] Idea for new internet standard: DKIM-QR

2021-12-14 Thread Tobias Herkula via mailop
onsider a DKIM Signature with l=0 as not acceptable. Besides that, what John said... / Tobias Herkula (Web.de|GMX|Mail.com) -Ursprüngliche Nachricht- Von: mailop Im Auftrag von Sebastian Nielsen via mailop Gesendet: Dienstag, 14. Dezember 2021 16:32 An: 'Mailing List' Betreff: Re: [mailop

Re: [mailop] Anyone from gmx.ch here?

2021-12-03 Thread Tobias Herkula via mailop
Answered off list / Tobias Herkula (Web.de|GMX|Mail.com) -Ursprüngliche Nachricht- Von: mailop Im Auftrag von Eliot Lear via mailop Gesendet: Donnerstag, 2. Dezember 2021 18:54 An: mailop Betreff: [mailop] Anyone from gmx.ch here? Seeing please contact offline. Thanks, Eliot

Re: [mailop] Paging GMX mail admins: issues with automatic mail forwards

2021-12-01 Thread Tobias Herkula via mailop
Replied off list. / Tobias Herkula (Web.de|GMX|Mail.com) -Ursprüngliche Nachricht- Von: mailop Im Auftrag von Carsten Schiefner via mailop Gesendet: Montag, 29. November 2021 16:22 An: mailop@mailop.org Betreff: [mailop] Paging GMX mail admins: issues with automatic mail forwards All

Re: [mailop] Mandated emails from notifications.newbalance.com on 1st of December

2021-11-30 Thread Tobias Herkula via mailop
Which DKIM signing Domains will be used for this send out? / Tobias Herkula (Web.de|GMX|Mail.com) Von: mailop Im Auftrag von Vytis Marciulionis via mailop Gesendet: Dienstag, 30. November 2021 16:24 An: mailop@mailop.org Betreff: [mailop] Mandated emails from notifications.newbalance.com

Re: [mailop] Mail.ru new network range and TLSRPT support

2021-11-17 Thread Tobias Herkula via mailop
Do you have any changes for the DKIM signing Domains? We currently have mail.ru, bk.ru, list.ru, internet.ru, inbox.ru and mail.ua on record for your system. Tobias Herkula -- Senior Product Owner Mail Security Product Mail Platform 1&1 Mail & Media GmbH | Mitte | 10115 Berlin | Deuts

Re: [mailop] DKIM+DMARC at t-online.de (Deutsche Telekom's ISP branche)

2021-10-15 Thread Tobias Herkula via mailop
you > see the message from. Hi Florian, do you have any update about this DMARC enforcement "experiment" @t-online.de ? -- Tobias Herkula Senior Product Owner Mail Security Product Mail Platform 1&1 Mail & Media GmbH | Mitte | 10115 Berlin | Deutschland _

Re: [mailop] GMAIL reject Bounces

2021-08-13 Thread Tobias Herkula via mailop
Hello Andreas, Citing RFC 3464 Section 2 Paragraph 4: "The From field of the message header of the DSN SHOULD contain the address of a human who is responsible for maintaining the mail system at the Reporting MTA site (e.g., Postmaster), so that a reply to the DSN will reach that person.

[mailop] Vodafone Germany Mail Infrastructure Change Notification

2020-11-27 Thread Tobias Herkula via mailop
jochen.me...@mediabeam.com > http://www.mediabeam.com > > HRB 3265 Amtsgericht Coesfeld > UST-ID DE 204 581 685 > Geschäftsführer Jochen Meyer, Markus Schulte Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

[mailop] Vodafone Germany Mail Infrastructure Change Notification

2020-11-26 Thread Tobias Herkula via mailop
> mailto:jochen.me...@mediabeam.com > http://www.mediabeam.com > > HRB 3265 Amtsgericht Coesfeld > UST-ID DE 204 581 685 > Geschäftsführer Jochen Meyer, Markus Schulte Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

[mailop] Vodafone Germany Mail Infrastructure Change Notification

2020-11-26 Thread Tobias Herkula via mailop
561 695-0111 > mailto:jochen.me...@mediabeam.com > http://www.mediabeam.com > > HRB 3265 Amtsgericht Coesfeld > UST-ID DE 204 581 685 > Geschäftsführer Jochen Meyer, Markus Schulte Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

[mailop] Vodafone Germany Mail Infrastructure Change Notification

2020-11-26 Thread Tobias Herkula via mailop
9 1091403 > Fax +49 2561 695-0111 > mailto:jochen.me...@mediabeam.com > http://www.mediabeam.com > > HRB 3265 Amtsgericht Coesfeld > UST-ID DE 204 581 685 > Geschäftsführer Jochen Meyer, Markus Schulte Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] t-online.de refuses to remove an ip from their blacklist

2020-06-18 Thread Tobias Herkula via mailop
Allow your customers to set an additional PTR. Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) From: mailop on behalf of Andreas Bueggeln - NOC - Profihost AG via mailop Sent: Thursday, June 18, 2020 12:57 To: mailop

Re: [mailop] How to allow different domain in envelope and header from? (Is Gmails DMARC check broken?)

2020-06-05 Thread Tobias Herkula via mailop
. But you will get the "via" Tag in compatible MUAs... Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) From: mailop on behalf of Benoît Panizzon via mailop Sent: Thursday, June 4, 2020 12:06 To: mailop@mailop.o

Re: [mailop] deactivation of hard bounces

2019-02-27 Thread Tobias Herkula
They say you could do this and the max is 3, they do not they you have to wait until the third one. That’s a big difference! Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) Von: mailop im Auftrag von Marco Franceschetti via mailop

Re: [mailop] Microsoft SNDS "Sorry, whois.ripe.net will not let us do any more lookups today. Please come back and try again tomorrow"

2018-10-16 Thread Tobias Herkula
Do you try to add a Range? I had problems with the same Error a couple of years ago, until I figured out that they also look up the Network IP, so for us it helped to add PTR-RR to 192.168.0.0 with a Domain that also belonged to us... Kind regards, / Tobias Herkula Manager Detection Anti Spam

Re: [mailop] *Grumble* When is Amazon AWS going to properly inject trace headers..

2018-09-26 Thread Tobias Herkula
lol, but sure someone will come up with it and does not intent to make a joke Kind regards, / Tobias Herkula Manager Detection Anti Spam Cyren (Berlin) From: Michael Wise Sent: Wednesday, September 26, 2018 10:11:10 PM To: Tobias Herkula; Michael

Re: [mailop] *Grumble* When is Amazon AWS going to properly inject trace headers..

2018-09-26 Thread Tobias Herkula
* Best practice, don't relay information about internal network structure to the public, so no internal trace header * you can only "trust" headers that are signed and pass validation * totally legit to generate mails on the outbound server Kind regards, / Tobias Herkula Manager Dete

Re: [mailop] Hotmail and 4.5.1 4.7.500 Server Busy with some

2017-11-09 Thread Tobias Herkula
Hi Emre, Some thoughts from me, I imagine a lot of people from the sender community are lurking on this list, but it seems to me that for most of them the initial hiccup of new errors from Microsoft because of the switch from the “old” Hotmail infrastructure to the “new” Office365 one got

Re: [mailop] About the Certified Senders Alliance

2017-11-02 Thread Tobias Herkula
something to the table that helps to clean up a lot of communication problems an ESP normally faces on the day to day operations. PS: i will bring the domain alignment issue as topic to the discussion for adding that as an requirement for the next iteration of the CSA rules... Kind regards, Tobi

Re: [mailop] About the Certified Senders Alliance

2017-11-02 Thread Tobias Herkula
community of CSA to implement DMARC we would not help our customers, we would simply give them a false feeling of having done something, that does not solves the underlying problem. Kind regards, Tobias Herkula -- optivo GmbH Product Management (Infrastructure

Re: [mailop] About the Certified Senders Alliance

2017-11-02 Thread Tobias Herkula
community of CSA to implement DMARC we would not help our customers, we would simply give them a false feeling of having done something, that does not solves the underlying problem. Kind regards, Tobias Herkula -- optivo GmbH Product Management (Infrastructure

Re: [mailop] T-Mobile Abuse Contact

2017-01-27 Thread Tobias Herkula
US or DE? Kind regards, / Tobias Herkula -- optivo GmbH Head of Deliverability & Abuse Management Wallstraße 16 10179 Berlin Germany Tel: +49(0)30-768078-129 Fax: +49(0)30-768078-499 Email:    mailto:t.herk...@optivo.com Website:  http://www.optivo.com Linkedin: http://www.linkedin