Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Ignacio García via mailop]

El 25/2/21 a las 22:40, Michael Wise via mailop escribió:


What She Said.

https://go.microsoft.com/fwlink/?LinkID=614866&clcid 



Aloha,

Michael.




Hi there


Yes, I did. I got an automated response, which I just replied, offering 
my full collaboration on this matter. I hope I'll get an answer soon.



Thanks


Ignacio


___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Jay Hennigan via mailop]

On 2/25/21 15:15, Andrew C Aitchison via mailop wrote:


Hmm. No indication of how to specify IPv6 addresses.

Do people think 256 addresses total is reasonable for IPv 6 ?


Reasonable for what?

A single subnet of /64 is 18,446,744,073,709,551,616 potential 
addresses. There's almost never a practical reason for prefixes longer 
than /64, but some people use /126 for point-to-point links out of habit 
from IPv4 days.


--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Michael Wise via mailop]

Hmm.



" That does put a damper on our relationship."
-- Dread Pirate Wesley



Unsure if that is an issue or by design.

I've always been a tad unenthusiastic about IPv6 for inter-org mail myself.

I know Office365 supports it.

Will ask around.

Aloha,
Michael.
--
Michael J Wise
Microsoft Corporation| Spam Analysis
"Your Spam Specimen Has Been Processed."
Open a ticket for Hotmail<http://go.microsoft.com/fwlink/?LinkID=614866> ?



-Original Message-
From: mailop  On Behalf Of Jay Hennigan via mailop
Sent: Thursday, February 25, 2021 4:20 PM
To: mailop@mailop.org
Subject: Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible 
solutions alternatives?



On 2/25/21 15:49, Alan Hodgson via mailop wrote:



> Does Microsoft even accept mail over IPV6?



Not for hotmail.com or outlook.com domains, apparently.







jay$ dig +short hotmail.com -t mx

2 hotmail-com.olc.protection.outlook.com.



jay$ dig +short hotmail-com.olc.protection.outlook.com -t 

jay$







jay$ dig +short outlook.com -t mx

5 outlook-com.olc.protection.outlook.com.



jay$ dig +short outlook-com.olc.protection.outlook.com -t 

jay$





--

Jay Hennigan - j...@west.net<mailto:j...@west.net>

Network Engineering - CCIE #7880

503 897-8550 - WB6RDV

___

mailop mailing list

mailop@mailop.org<mailto:mailop@mailop.org>

https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flist.mailop.org%2Flistinfo%2Fmailop&data=04%7C01%7Cmichael.wise%40microsoft.com%7Cf6f475a871f74598757c08d8d9ed9218%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637498961801824467%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=npEI8XJ1lgzpO9QbqMDuN4JZFvFw2W0NoLzFaBIpF0E%3D&reserved=0
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Jay Hennigan via mailop]

On 2/25/21 15:49, Alan Hodgson via mailop wrote:


Does Microsoft even accept mail over IPV6?


Not for hotmail.com or outlook.com domains, apparently.



jay$ dig +short hotmail.com -t mx
2 hotmail-com.olc.protection.outlook.com.

jay$ dig +short hotmail-com.olc.protection.outlook.com -t 
jay$



jay$ dig +short outlook.com -t mx
5 outlook-com.olc.protection.outlook.com.

jay$ dig +short outlook-com.olc.protection.outlook.com -t 
jay$


--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Michael Wise via mailop]

Yes, but it must be authenticated with SPF, DKIM, and DMARC, last I heard.
Otherwise ... not happening.

Aloha,
Michael.
--
Michael J Wise
Microsoft Corporation| Spam Analysis
"Your Spam Specimen Has Been Processed."
Open a ticket for Hotmail<http://go.microsoft.com/fwlink/?LinkID=614866> ?

From: mailop  On Behalf Of Alan Hodgson via mailop
Sent: Thursday, February 25, 2021 3:49 PM
To: mailop@mailop.org
Subject: Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible 
solutions alternatives?

On Thu, 2021-02-25 at 23:15 +, Andrew C Aitchison via mailop wrote:

On Thu, 25 Feb 2021, Michael Wise via mailop wrote:




<https://go.microsoft.com/fwlink/?LinkID=614866&clcid>

https://go.microsoft.com/fwlink/?LinkID=614866&clcid






Hmm. No indication of how to specify IPv6 addresses.



Do people think 256 addresses total is reasonable for IPv 6 ?



Does Microsoft even accept mail over IPV6?
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Steve Holdoway via mailop]

last I heard the ip blocklists worked at /64 granularity

Had one provider dole them out singly...

February 26, 2021 12:48 PM, "Andrew C Aitchison via mailop"  
wrote:

> On Thu, 25 Feb 2021, Michael Wise via mailop wrote:
> 
>> https://go.microsoft.com/fwlink/?LinkID=614866&clcid
> 
> Hmm. No indication of how to specify IPv6 addresses.
> 
> Do people think 256 addresses total is reasonable for IPv 6 ?
> 
> -- Andrew C. Aitchison Kendal, UK
> and...@aitchison.me.uk
> ___
> mailop mailing list
> mailop@mailop.org
> https://list.mailop.org/listinfo/mailop
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Alan Hodgson via mailop]

On Thu, 2021-02-25 at 23:15 +, Andrew C Aitchison via mailop wrote:
> On Thu, 25 Feb 2021, Michael Wise via mailop wrote:
> >https://go.microsoft.com/fwlink/?LinkID=614866&clcid
> 
> Hmm. No indication of how to specify IPv6 addresses.
> Do people think 256 addresses total is reasonable for IPv 6 ?

Does Microsoft even accept mail over IPV6?


signature.asc
Description: This is a digitally signed message part
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Michael Wise via mailop]

If you're doing IPv6 addresses ... are you using SPF, DKIM *AND* DMARC?
Because if not, or if the DKIM doesn't verify, that's the issue.

Aloha,
Michael.
-- 
Michael J Wise
Microsoft Corporation| Spam Analysis
"Your Spam Specimen Has Been Processed."
Open a ticket for Hotmail ?

-Original Message-
From: Andrew C Aitchison  
Sent: Thursday, February 25, 2021 3:16 PM
To: Michael Wise 
Cc: mailop@mailop.org
Subject: Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible 
solutions alternatives?

On Thu, 25 Feb 2021, Michael Wise via mailop wrote:

>https://go.microsoft.com/fwlink/?LinkID=614866&clcid

Hmm. No indication of how to specify IPv6 addresses.

Do people think 256 addresses total is reasonable for IPv 6 ?

-- 
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Andrew C Aitchison via mailop]

On Thu, 25 Feb 2021, Michael Wise via mailop wrote:


   https://go.microsoft.com/fwlink/?LinkID=614866&clcid


Hmm. No indication of how to specify IPv6 addresses.

Do people think 256 addresses total is reasonable for IPv 6 ?

--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop

Re: [mailop] [EXTERNAL] Re: Hotmail and block on OVH: possible solutions alternatives?

[Michael Wise via mailop]

What She Said.

  https://go.microsoft.com/fwlink/?LinkID=614866&clcid

Aloha,
Michael.
--
Michael J Wise
Microsoft Corporation| Spam Analysis
"Your Spam Specimen Has Been Processed."
Open a ticket for Hotmail ?

From: mailop  On Behalf Of Laura Atkins via mailop
Sent: Thursday, February 25, 2021 12:58 AM
To: Ignacio García 
Cc: mailop 
Subject: [EXTERNAL] Re: [mailop] Hotmail and block on OVH: possible solutions 
alternatives?




On 25 Feb 2021, at 08:41, Ignacio García via mailop 
mailto:mailop@mailop.org>> wrote:

Hi there


We are a small ISP for small and medium companies only. We have several email 
servers hosted at OVH/SoYouStart. Although some OVH IP segments are not of the 
likes of Microsoft, some of my servers have been running for so long without 
any incidents that their IPs have had a normal reputation at Microsoft for 
years. Now we've set up some more, but even our failover IPs are completely 
blocked by Hotmail servers. We of course have added those IPs to the SNDS 
monitoring program, no email has been sent since we rented those servers more 
than 2 months except for this week, after set up and internal initial beta 
testing.


>From your experience, how long may it take to MS to allow communications from 
>those IPs? Is there anything else we can do to to help solve this situation?

Have you opened a ticket for mitigation for those IPs?

laura

--
Having an Email Crisis?  We can help! 800 823-9674

Laura Atkins
Word to the Wise
la...@wordtothewise.com
(650) 437-0741

Email Delivery Blog: 
https://wordtothewise.com/blog






___
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop