[mailop] Microsoft BackScatter problem? Michael W, can you investigate?

Having a few customers reporting a REAL strange case.. they are being overwhelmed by what looks like backscatter, but a very broken backscatter. All IPs in the 40.92.NNN.NNN block. The backscatter message coming from postmas...@outlook.com as NDR"s but not a normal NDR. Being delivered to ser

Re: [mailop] [E] Help With a Sudden AOL/Yahoo Issue

We are having an outage actually. Please stay tuned. I can let everyone know here when it has passed. Thanks! *Lili Crowley* she/her Postmaster On Wed, Aug 9, 2023 at 4:54 PM Michael E. Weisel via mailop < mailop@mailop.org> wrote: > Hi Mailop community. We have

Re: [mailop] [E] Re: Help With a Sudden AOL/Yahoo Issue

Thanks Alex! We are and are recovering now. You should start seeing improvements soon. *Lili Crowley* she/her Postmaster On Wed, Aug 9, 2023 at 5:02 PM Alex Burch via mailop wrote: > Yes I think this is widespread. I am 90% sure Yahoo is looking into it > right

Re: [mailop] Help With a Sudden AOL/Yahoo Issue

My spool is already starting to slowly go down, so I think it was probably just a temporary blip. Sincerely, Eric Tykwinski TrueNet, Inc. P: 610-429-8300 > On Aug 9, 2023, at 4:58 PM, Alex Burch via mailop wrote: > > Yes I think this is widespread. I am 90% sure Yahoo is looking into it right

Re: [mailop] Help With a Sudden AOL/Yahoo Issue

This is an issue on Yahoo’s end and they are working on it currently. Many people in the deliverability community are reporting the same thing. From: mailop On Behalf Of Michael E. Weisel via mailop Sent: Wednesday, August 9, 2023 4:16 PM To: mailop@mailop.org Subject: [mailop] Help With a Sudd

Re: [mailop] Help With a Sudden AOL/Yahoo Issue

Yes I think this is widespread. I am 90% sure Yahoo is looking into it right now Thanks, Alex -- Alexander Burch ActiveCampaign / Senior Deliverability Engineer abu...@activecampaign.com 1 North Dearborn St Suite 500, Chicago IL, 60602

[mailop] Help With a Sudden AOL/Yahoo Issue

Hi Mailop community. We have experienced a sudden Yahoo/AOL/Verizon block for one of our clients that we are trying to figure out. We saw no indication of any issues until we started seeing TSS04 messages in the logs around 3:00pm today. It would be greatly appreciated if someone on the list

Re: [mailop] Any insight on whether to treat the Microsoft Consumer/Business MXes separately?

Thanks Tara, that lines up with my expectation. Mike -Original Message- From: Tara Natanson Sent: Wednesday, August 9, 2023 1:32 PM To: Mike Hillyer Cc: mailop Subject: Re: [mailop] Any insight on whether to treat the Microsoft Consumer/Business MXes separately? One of those MXs is

Re: [mailop] Any insight on whether to treat the Microsoft Consumer/Business MXes separately?

Yes, and it is, but I want to ensure that the default behavior is well behaved as the ISPs want. -Original Message- From: mailop On Behalf Of Jaroslaw Rafa via mailop Sent: Wednesday, August 9, 2023 2:19 PM To: mailop@mailop.org Subject: Re: [mailop] Any insight on whether to treat the M

Re: [mailop] Any insight on whether to treat the Microsoft Consumer/Business MXes separately?

Dnia 9.08.2023 o godz. 17:13:01 Mike Hillyer via mailop pisze: > > We have a user who has noted that the two subdomains > *.olc.protection.outlook.com and *.mail.protection.outlook.com are > grouping separately and asked about them being merged so they could > maintain only one set of throttle co

Re: [mailop] Send emails over O365 to Google with a specific domain are rejected

It appears that Otto J. Makela via mailop said: >I concur, Google seems to think that if you are using IPv6 for transport >you must be Teh Master of Teh Internet™, and it'll be trivial for you >to get every single detail right in your messages. They've said for a long time that all mail to them o

Re: [mailop] Any insight on whether to treat the Microsoft Consumer/Business MXes separately?

One of those MXs is for Hotmail.com, outlook.com, msn.com and the other is for all domains hosted on Office365. For reporting purposes we keep these very separate in our system as they have a tendency to treat the messages differently. I would strongly recommend you keep them separate, especiall

[mailop] Any insight on whether to treat the Microsoft Consumer/Business MXes separately?

Hi All, I think I mentioned on here before that we are building an Open Source MTA for senders (https://github.com/KumoCorp/kumomta). One of our features is that we throttle by MX group instead of the destination domain, so that when someone sends to an o365 domain as an example the mail is qu

Re: [mailop] ANY OVH Contact?

On 2023-08-09 08:55, Mark Alley via mailop wrote: On 8/9/2023 3:31 AM, Jaroslaw Rafa via mailop wrote: Dnia 9.08.2023 o godz. 11:00:12 Otto J. Makela via mailop pisze: Unless the situation has dramatically changed in the last year, OVH has no functioning abuse team. I block a majority of thei

Re: [mailop] ANY OVH Contact?

On 8/9/2023 3:31 AM, Jaroslaw Rafa via mailop wrote: Dnia 9.08.2023 o godz. 11:00:12 Otto J. Makela via mailop pisze: Unless the situation has dramatically changed in the last year, OVH has no functioning abuse team. I block a majority of their nets from sending email, don't seem to getting an

Re: [mailop] ANY OVH Contact?

Just ONE ?? Hehehe.. Block and Forget.. Lot's of active affiliate spammers, malware senders, BEC actors, phishing, and throw away domains.. Sorry, but OVH team's are completely uncaring on this matter it appears. It's a sad trend, those hosting providers who's 'in-use' IP count is more importa

Re: [mailop] CS02 errors from Apple on Japanese emails only

Will do, Suresh. Thanks! On Wed, Aug 9, 2023 at 10:41 AM Suresh Ramasubramanian wrote: > Hi. Please feel free to forward me any ticket responses you got from the > postmaster team, glad to take a look > > --srs > -- > *From:* mailop on behalf of Christine Borgia > vi

Re: [mailop] CS02 errors from Apple on Japanese emails only

Hi. Please feel free to forward me any ticket responses you got from the postmaster team, glad to take a look --srs From: mailop on behalf of Christine Borgia via mailop Sent: Wednesday, August 9, 2023 7:57:06 PM To: mailop@mailop.org Subject: [mailop] CS02 er

[mailop] CS02 errors from Apple on Japanese emails only

If anyone here is from Apple, I'd love to chitty chat with you about CS02 errors we see only for our Japanese customers. The postmaster provides inconsistent responses, mostly regarding authentication as a solution. All of our mail is fully authenticated. I'd be interested in passing along some inf

Re: [mailop] Send emails over O365 to Google with a specific domain are rejected

On 09.08.2023 at 10:05 Otto J. Makela via mailop wrote: > On 8/7/23 03:06, Al Iverson via mailop wrote: >> If MS is using IPv6 to send the mail to Google, you might be in an >> extra difficult spot. Not everybody agrees/believes this, but in my >> experience Gmail is more quick to block IPv6-sent

Re: [mailop] ANY OVH Contact?

Dnia 9.08.2023 o godz. 11:00:12 Otto J. Makela via mailop pisze: > > Unless the situation has dramatically changed in the last year, > OVH has no functioning abuse team. I block a majority of their nets > from sending email, don't seem to getting any false positives. Luckily you don't block the

Re: [mailop] ANY OVH Contact?

On 8/8/23 18:44, Anne Mitchell via mailop wrote: Does anyone have *any* contact at OVH? Reports to abuse@, and through the abuse page, have yielded nothing for this very unrepentant spammer. :-( Unless the situation has dramatically changed in the last year, OVH has no functioning abuse team.

Re: [mailop] Send emails over O365 to Google with a specific domain are rejected

On 8/7/23 03:06, Al Iverson via mailop wrote: If MS is using IPv6 to send the mail to Google, you might be in an extra difficult spot. Not everybody agrees/believes this, but in my experience Gmail is more quick to block IPv6-sent mail; they're more stringent about what they might let through ve