[AusNOG] Microsoft missing RDNS

[Joshua Stark]

Thanks Mal,

Yep, I clearly was not looking very closely.... maybe I should have 
coffee next time before replying


On 12/6/21 13:07, Mal wrote:
>
> You might want to re-read your query output Joshua..
>
>
>
>
> Mal
>
>
>
> On 12/06/2021 8:03 am, Joshua Stark wrote:
>> Hi Mike,
>>
>> Those two IPs have a reverse for me, do they work for you now since 
>> opening your ticket with MS?
>>
>> % dig -x 40.92.63.85 ; <<>> DiG 9.10.6 <<>> -x 40.92.63.85 ;; global 
>> options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: 
>> NXDOMAIN, id: 25838 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, 
>> AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, 
>> flags:; udp: 1460
>> ;; QUESTION SECTION: ;85.63.92.40.in-addr.arpa.    IN    PTR
>> ;; AUTHORITY SECTION: 92.40.in-addr.arpa.    300    IN    SOA    
>> ns1-07.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 
>> 2419200 300
>> % dig -x 40.92.62.31 ; <<>> DiG 9.10.6 <<>> -x 40.92.62.31 ;; global 
>> options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: 
>> NXDOMAIN, id: 53408 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, 
>> AUTHORITY: 1, ADDITIONAL: 1
>> ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1460
>> ;; QUESTION SECTION: ;31.62.92.40.in-addr.arpa.    IN    PTR ;; 
>> AUTHORITY SECTION: 92.40.in-addr.arpa.    300    IN    SOA    
>> ns1-07.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 
>> 2419200 300
>>
>> Thanks
>> Josh
>>
>>
>> *Joshua Stark*
>> Email: starkjs at gmail.com
>>
>> On 11/6/21 09:17, Mike Manning wrote:
>>>
>>> Hi all,
>>>
>>> Anyone else here experiencing missing RDNS for a swath of IP’s from 
>>> Microsoft on a few different subnets? I’ve opened a ticket with 
>>> Microsoft netops for it and I’ve done an rDNS bypass on our local 
>>> antispam filter however we’re now seeing o365 clients with the same 
>>> issue when trying to receive emails from anyone with an @outlook.com 
>>> or @msn.com email address.. where do you draw the line in adding 
>>> bypass after bypass?
>>>
>>> host 40.92.63.85
>>>
>>> Host 85.63.92.40.in-addr.arpa. not found: 3(NXDOMAIN)
>>>
>>> host 40.92.62.31
>>>
>>> Host 31.62.92.40.in-addr.arpa. not found: 3(NXDOMAIN)
>>>
>>> *Mike Manning*
>>> *Network Engineer*
>>>
>>> *Matilda Internet*
>>> ________________
>>>
>>> (Telephone +61 7 4953 0711
>>> (Fax +61 7 4849 5000
>>> 29 Gregory Street, Mackay, QLD 4740, Australia
>>> *Emailmike at matilda.net.au
>>> <mailto:mike at matilda.net.au>Websitewww.matilda.net.au
>>> <http://www.matilda.net.au/>
>>>
>>> This email and any files transmitted with it are confidential and 
>>> are intended solely for the use of the individual or entity to whom 
>>> it is addressed.  If you are not the recipient be advised that you 
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>>> forwarding, printing copying or use of the contents contained in 
>>> this e-mail and any file attachments is strictly prohibited.  If you 
>>> have received this email in error please immediately notify the 
>>> sender by telephone or by reply email to the sender.  You must 
>>> destroy the original transmission and its contents.  It is 
>>> recommended that you virus test the information and any 
>>> attachments.  Matilda Internet does not accept liability for any 
>>> loss or damage howsoever occurred as a result of this email 
>>> transmission or any attachments to it.
>>>
>>>
>>> _______________________________________________
>>> AusNOG mailing list
>>> AusNOG at lists.ausnog.net
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>>
>>
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>

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