Might be related with the recent DMARC changes announced by 1&1.
--------- Just a short info to whom it might interest: Very soon, we will go live with DMARC check on incoming mails for all mailboxes operated by WEB.DE, GMX & mail.com. That covers several hundred of recipient domains [1] and roughly 50% of the German email users. For now we will handle reject and quarantine policies equally as quarantine. GDPR compliant, aggregated DMARC reports will follow as well (without giving an ETA). Best regards Arne Allisat --------- -----Ursprüngliche Nachricht----- Von: tobisworld--- via mailop <[email protected]> Gesendet: Donnerstag 11 März 2021 22:07 An: [email protected] Betreff: [mailop] Delivery issues with gmx recipients Hello We're an email provider in Switzerland and since about 16:45 our Outbound Service for our customers has massive delivery issues with mail to gmx recipients. We're getting > 421-gmx.net (mxgmx115) Nemesis ESMTP Service not available 421-Service > unavailable 421-Reject due to policy restrictions. Could someone of GMX contact me offlist as I cannot provide details via a public-mailinglist Thanks and have a good one tobi _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
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