On 23.02.2026 at 22:05 Hans-Martin Mosne via mailop wrote: > Am 23.02.26 um 21:48 schrieb Jarland Donnell via mailop: >> I just wanted to poke around and ask if anyone else was seeing an increase >> in behavior like this today from MS: >> 451 4.7.650 The mail server [136.175.108.47] has been temporarily rate >> limited due to IP reputation. For e-mail delivery information, see >> https://aka.ms/postmaster (S775) [Name=Protocol Filter >> Agent][AGT=PFA][MxId=11BCD799F8C0D17A] >> [DB1PEPF00050A01.eurprd03.prod.outlook.com 2026-02-23T20:36:05.976Z >> 08DE6BCD08E3CD4A] >> I mean, we fight harder against outbound spam than any ESP I've ever >> witnessed, to the point that spammers frequently call me a "Nazi." No >> significant number of complaints over their FBL, but every one is actioned. >> I'll accept if it's just me, but it would be nice to hear it's not just me.
> It's not just you. We (not my private domain but a medium-size religious > organization) are affected since about 19:20 UTC. I'm pretty sure that our > outbound spam prevention is on par with yours :-) > Microsoft's spam handling is broken, simple as that. No need to argue about > that. We receive the same error messages for all servers since 2026-02-23 18:45 UTC. It's unlikely that Microsoft suddenly received spam from all IP addresses of all kind of unrelated organizations yesterday evening. Probably some algorithm went nuts there. -- BR Oliver ________________________________ dmTECH GmbH Am dm-Platz 1, 76227 Karlsruhe * Postfach 10 02 34, 76232 Karlsruhe Telefon 0721 5592-2500 Telefax 0721 5592-2777 [email protected]<mailto:[email protected]> * 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 [email protected] https://list.mailop.org/listinfo/mailop
