I'm seeing it as well. I've blogged about it here: https://www.spamresource.com/2024/04/microsoft-intermittent-storedrvdeliver.html
Somebody theorized to me that it could be some sort of new "mailbox full" type error. But that doesn't seem to fit with what I'm seeing. Cheers, Al Iverson On Tue, Apr 9, 2024 at 4:35 PM Mark Fletcher via mailop <mailop@mailop.org> wrote: > > On Tue, Apr 9, 2024 at 5:09 PM David Landers via mailop <mailop@mailop.org> > wrote: >> >> Beginning today, we've observed a spike in asynchronous bounces -- messages >> initially accepted for delivery but then returned as a non-conversational >> bounce -- at Outlook domains (e.g. outlook.com, hotmail.com, etc.) with the >> following rejection syntax: >> >> 532 5.3.2 STOREDRV.Deliver; Missing or bad mailbox Database property >> > A quick spot check of our logs shows that we started getting that specific > error message yesterday afternoon and have gotten a lot of them today. > > Cheers, > Mark > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop -- Al Iverson // 312-725-0130 // Chicago http://www.spamresource.com // Deliverability http://www.aliverson.com // All about me https://xnnd.com/calendar // Book my calendar _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
