On 17.12.2023 at 21:48 Michael Peddemors via mailop wrote: > On 2023-12-13 16:08, Randolf Richardson, Postmaster via mailop wrote: >> We're not seeing that error in our mail server logs here in Canada. >> >> The trend seems to be that mail servers worldwide have gradually >> been adding DKIM signing to all outbound mail, and some are starting >> to require it of all inbound mail (we're also considering making DKIM >> signing a requirement for all inbound mail). >> >> Feel free to ask if you have any questions about getting these >> things set up -- the SPF and DMARC part is very easy, and the DKIM >> part takes a bit of work that's well worth the effort. >> >> Getting everything configured and tested over a few days or a >> weekend is a realistic possibility (depending on the size and >> complexity of your system, of course), and could be a nice gift for >> your users if it's working before Christmas. >> >>> Hello all, >>> >>> do any of you who do not live in Germany have this error message from >>> GMX and WEB.DE? Or is this an educational measure for German providers only? >>> >>> 451-Requested action aborted\n451-Reject due to policy >>> restrictions.\n451 For explanation visit https://postmaster.gmx.net/de/ >>> https://postmaster.gmx.net/en/case?c=r0103 >>> >>> Hundreds of domains go through our servers, should we now explain to >>> every customer that if they, as German citizens, want to send an e-mail >>> to other German citizens, especially if they live with Web or GMX.de, >>> they must first populate their domains with DKIM entries? Cool thing, >>> especially so close to Christmas. >>> >>> Kind regards >>> Andreas
> A bit off topic, but it is always amazing.. rejecting based on no DKIM? > It's like most new requirements, ever notice that the spammers are > implementing these requirements sooner/faster than the real email operators > and domains? > Spammers got SPF down pat a lot faster.. they adopted TLS faster.. List > unsubscribe formats, even DNS they nailed it faster than most large > companies.. > I still think we as an industry are going down a slippery slope.. Email > should not be complicated.... And those companies with some of the tightest > restrictions, are also the source of some of the worst spam.. > The litany of sill acronyms needed to operate an email server, have added > layer on top of layer, without truly solving the underlying needs that > promoted their use in the first place.. > Are we moving towards a walled garden, where only the largest email providers > are allowed to play? I don't believe that DKIM is a good example for a walled garden, as it is an open standard. It's also not necessary that everyone, especially not the end users, understand DKIM, but a person who is responsible for running a mail server should. So my take on the original question is that it is a reasonable expectation that domains are populated with DKIM entries. If you have customers that send unauthenticated emails then you should change this quickly, regardless of the changes at GMX. Google is introducing a similar requirement in one month and I know email service providers that add a significant amount of spam points to every unauthenticated incoming message since at least 2017. Conversely DKIM does not give you a free pass into the inbox. It just allows filtering based on domains instead of IP addresses which is a necessary improvement in times of email-as-a-service with shared IP space. So if spammers implement DKIM as well this won't help them. -- Best regards 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<mailto:dmt...@dm.de> * www.dmTECH.de<http://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 ServiceCenter Fragen haben, bei uns einkaufen oder unser dialogicum in Karlsruhe besuchen, mit uns in einer geschäftlichen Verbindung stehen oder sich bei uns bewerben, verarbeiten wir personenbezogene Daten. Informationen unter anderem zu den konkreten Datenverarbeitungen, Löschfristen, Ihren Rechten sowie die Kontaktdaten unserer Datenschutzbeauftragten finden Sie hier<https://www.dm.de/datenschutzerklaerung-kommunikation-mit-externen-493832>. _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
