Hey Andreas We are happy to help. I have just sent you an e-mail.
You can always contact our postmaster team via the SMTP error message (https://postmaster.gmx.net/en/case?c=r0103) and get help. Best regards Nikolas Bauer Senior Mail Security Engineer Mail Security Postmaster 1&1 Mail & Media GmbH | Brauerstraße 48 | 76135 Karlsruhe | Deutschland Hauptsitz Montabaur, Amtsgericht Montabaur, HRB 7666 Geschäftsführer: Alexander Charles, Dana Kraft, Thomas Ludwig Member of United Internet Diese E-Mail kann vertrauliche und/oder gesetzlich geschützte Informationen enthalten. Wenn Sie nicht der bestimmungsgemäße Adressat sind oder diese E-Mail irrtümlich erhalten haben, unterrichten Sie bitte den Absender und vernichten Sie diese E-Mail. Anderen als dem bestimmungsgemäßen Adressaten ist untersagt, diese E-Mail zu speichern, weiterzuleiten oder ihren Inhalt auf welche Weise auch immer zu verwenden. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient of this e-mail, you are hereby notified that saving, distribution or use of the content of this e-mail in any way is prohibited. If you have received this e-mail in error, please notify the sender and delete the e-mail. From: mailop <mailop-boun...@mailop.org> on behalf of Andreas via mailop <mailop@mailop.org> Reply to: Andreas <mai...@spectrum-net.de> Date: Wednesday, 13. December 2023 at 22:29 To: "mailop@mailop.org" <mailop@mailop.org> Subject: [mailop] 451-Reject due to policy restrictions from web.de and gmx.de 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
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