Re: [mailop] Outlook/Hotmail/etc rejecting email (but not Office 365)

[Michael Wise via mailop]

I did nothing... as such.

But for the comfort of a listening ear, you're most welcome!



I am ... struggling to make these kinds of incidents fewer and more 
transparent. 

Where I can.

But I don’t set the policies or muck with the code. 

Aloha,
Michael.
--
Michael J Wise
Microsoft Corporation| Spam Analysis
"Your Spam Specimen Has Been Processed."
Got the Junk Mail Reporting 
Tool ?



-Original Message-
From: Chris Malton (Delta V) 
Sent: Monday, December 10, 2018 11:42 PM
To: Michael Wise ; mailop@mailop.org
Subject: Re: [mailop] Outlook/Hotmail/etc rejecting email (but not Office 365)



On 11/12/2018 00:11, Michael Wise via mailop wrote:

> Looks like Mitigation was applied, but it's possible that the /24 had some 
> bad tenants previously?

I have a hunch it was allocated before, I'm just curious why it's been working 
for 2-3 months, and then suddenly stopped between Saturday night and this 
morning.

> We don't provide support thru MailOp, only via the Support webform, which it 
> seems you have already discovered.



Understandable Michael - was just curious if anyone else could see anything I'd 
obviously missed.



Your Deliverability Support Team have been in touch off the back of that form 
and things now seem to be working again.



Many thanks for any work you did behind the scenes to get this in front of the 
right people.



Regards,



Chris Malton



--

Delta V Technologies Limited

0 402 406
https://nam06.safelinks.protection.outlook.com/?url=www.deltav-tech.co.ukdata=02%7C01%7CMichael.Wise%40microsoft.com%7Ca5767676a79745cb097408d65f3c1262%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636801108961343190sdata=e8aYfnZmfHm1PZ8HwDdoTpVhYlNW2s228BUfV8%2BO7eM%3Dreserved=0

Office: 17 Elm Close, Southampton, SO16 7DT Company No. 11006104 Registered in 
England and Wales


___
mailop mailing list
mailop@mailop.org
https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop

[mailop] Groupspaces - DMARC support?

[Autumn Tyr-Salvia]

Hello,

Anyone here know if Groupspaces offers any sort of header rewriting
capabilities for DMARC support? A customer of mine participates in a
Groupspaces mailing list, and their support has not responded to either me
nor the customer when we've tried to ask them about this, and I didn't find
anything in what documentation I was able to view. If anyone here knows the
answer, or knows anyone at Groupspaces, please let me know.


Thanks,

Autumn Tyr-Salvia
tyrsalvia@gmail
atyrsalvia@agari
___
mailop mailing list
mailop@mailop.org
https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop

[mailop] smaprl.com, mailspamprotection.com and spamshield.io

[Luis E. Muñoz via mailop]

Assistance in reaching these parties would be appreciated. Already 
contacted mailspamprotection.com — the issue seems related to one of 
their users sending us a spam complaint, and then the auto-ack (or the 
message where we mentioned that we nuked the abuse source) triggering 
the listing.


For spamshield.io, they really seem to make themselves hard to reach.

This is for one-to-one, office email — not mailing lists. Would love 
to get some evidence samples so as to properly troubleshoot, but the 
spamrl.com way of doing things makes this process harder.


Thanks!

-lem

___
mailop mailing list
mailop@mailop.org
https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop

Re: [mailop] Outlook/Hotmail/etc rejecting email (but not Office 365)

[Benjamin BILLON]

Hi Chris, 

Although rare, this isn't unusual. For some reason Microsoft considered there's 
an issue. In a similar case I had recently, I couldn't say that " part of their 
network is on our block list "* is untrue. We have some IPs blocked, as seen on 
SNDS, and some on the same range as the IPs that generated these replies. 
However, those specific IPs had a pretty fine traffic.
So these IPs were getting rejection because other IPs in the network (range?) 
are also blocked, but despite being rejected, those weren't blocked.
These 2 IPs (with the same fine traffic) generated rejections (not the plenty 
of other neighbor IPs in the same situation of "part of network is on block 
list"), they were submitted together to the Support, first answer was "we see 
no problem on one and the other has been mitigated". The next day, the "no 
problem" one was still rejecting, so I pushed back to the Support, and they 
mitigated as well. Case closed!

There's mystery (or dark magic) going on in Outlook.com. But after a few back 
and forth with the Support, they've been mitigated, and back to normal. So 
honestly at this point, I let the "but why" go!

* I believe that being on Microsoft's "block list" isn't necessarily about the 
blocked IPs we can see on SNDS 
--
Benjamin 

-Original Message-
From: mailop  On Behalf Of Chris Malton (Delta V)
Sent: mardi 11 décembre 2018 08:42
To: Michael Wise ; mailop@mailop.org
Subject: Re: [mailop] Outlook/Hotmail/etc rejecting email (but not Office 365)

On 11/12/2018 00:11, Michael Wise via mailop wrote:
> Looks like Mitigation was applied, but it's possible that the /24 had some 
> bad tenants previously?
I have a hunch it was allocated before, I'm just curious why it's been working 
for 2-3 months, and then suddenly stopped between Saturday night and this 
morning.
> We don't provide support thru MailOp, only via the Support webform, which it 
> seems you have already discovered.

Understandable Michael - was just curious if anyone else could see anything I'd 
obviously missed.

Your Deliverability Support Team have been in touch off the back of that form 
and things now seem to be working again.

Many thanks for any work you did behind the scenes to get this in front of the 
right people.

Regards,

Chris Malton

--
Delta V Technologies Limited
0 402 406www.deltav-tech.co.uk
Office: 17 Elm Close, Southampton, SO16 7DT Company No. 11006104 Registered in 
England and Wales


___
mailop mailing list
mailop@mailop.org
https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
___
mailop mailing list
mailop@mailop.org
https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop