Logged into SNDS to give it a look today - I was wrong about our averages - going back a couple of weeks it was more like 3000~4000 per day [still, small fry].
It looks like since the 19th or so - our successful deliveries to Outlook/Microsoft have dwindled. Feb 19 - 2902 messages transacted to Outlook/Hotmail Feb 20 - 2271 Feb 21 - 1740 Feb 22 - 1640 Feb 23 - 945 Feb 24 - 0 Feb 25, so far, - 0 When I check the 24th I see "No data for specified IPs on this date" Meanwhile the IP status page shows no issues: "The table below lists any IPs you are authorized to view that have an abnormal status. This data is updated once per day, so it may not reflect the current state of the IPs. All of the specified IPs have normal status." I guess on the plus side, if you want to think about it that way, we aren't the only ones affected meaning it should have their attention and hopefully they'll do something to fix it. Sadly I suspect we'll just have to wait until a human gets to our ticket and looks at it. A bit concerning that the SNDS doesn't report any details on this - it's almost as if one part of the Microsoft team decided to implement a sweeping change without talking to the other part of Microsoft that manages the SNDS/JMRP. I feel sorry for the support staff at Microsoft probably having to deal with a problem they didn't themselves create. Thank you, Michael Denney MDDHosting LLC http://www.mddhosting.com/ > On Feb 25, 2026, at 12:19 PM, John Quaglieri via mailop <[email protected]> > wrote: > > It is encouraging to see some senders getting a reset. I see a large number > of complaints on the learn.microsoft.com Q&A board for the same (S775) error. > Ticket responses I’m seeing are ranging at least 24 hours per response on my > own ticket which the last one was nothing is preventing these emails from > reaching. For now, I have slowed down mail going to Hotmail/Outlook domains. > > On 2/25/2026 11:50 AM, Jarland Donnell via mailop wrote: >> I would appreciate the same. At this point we're looking at severe options >> to react to this. I'm interpreting it as anti-competitive behavior aiming to >> destroy other ESPs at this point. I've gone round and round with their team >> via tickets and they genuinely just do not give a shit. >> >> On 2026-02-25 03:26, Matthew Francis via mailop wrote: >>> Frido Otten via mailop wrote on 2026-02-25 08:12: >>>> From my experience, some of them are lurking here as I do get direct >>>> messages sometimes asking for more information on an issue posted here. >>> >>> If that's the case, I'd appreciate a direct message from an MS lurker. All >>> of my MTA's are currently rate limited and I have not had a response to my >>> open ticket (7098423866). >>> >>> Thanks, >>> >>> Matt. >>> _______________________________________________ >>> mailop mailing list >>> [email protected] >>> https://list.mailop.org/listinfo/mailop >> _______________________________________________ >> mailop mailing list >> [email protected] >> https://list.mailop.org/listinfo/mailop > > -- > John Quaglieri > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop
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