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List: nanog
Subject: Re: Microsoft 365 Delisting Service
From: Mike Hammett <nanog () ics-il ! net>
Date: 2022-12-06 16:07:33
Message-ID: 1498060522.51.1670342852336.JavaMail.mhammett () Thunderfuck2
[Download RAW message or body]
I'd go to the MailOps list.
-----
Mike Hammett
Intelligent Computing Solutions
Midwest Internet Exchange
The Brothers WISP
----- Original Message -----
From: "Andrian Visnevschi via NANOG" <nanog@nanog.org>
To: nanog@nanog.org
Sent: Tuesday, December 6, 2022 4:09:07 AM
Subject: Microsoft 365 Delisting Service
Dear community,
Is there anyone from the Microsoft 365 team here ? or is there anybody who has \
contacts of any representative who can help with IP delisting ?
We are a cybersecurity company, protecting organizations from our own cloud. Our IP \
ranges always had a good reputation and all online public services show our IPs as \
good, and not listed on any spam lists / black lists.
We have a customer who is using 149.19.194.91 IP. We checked it into all public \
services for IP reputation and everywhere it shows up as GOOD. Anyway using \
Microsoft 365 Services, all emails are rejected: " Unfortunately, messages from \
[149.19.194.91] weren't sent. Please contact your Internet service provider since \
part of their network is on our block list (S3150). "
We tried to delist the IP 149.19.194.91 many times through https://sender.office.com/ \
but it never worked... All the time we submit the request, it says that it requires \
escalation, we ask for escalation and nothing happens, we are not getting any \
feedback for weeks...
At the outlook ipStatus( \
https://sendersupport.olc.protection.outlook.com/snds/ipStatus.aspx ) I don't see \
any of our IPs having an abnormal status...
Has anybody encountered the same issue ? How did you get it resolved ? It looks very \
hard to cooperate with Microsoft, they keep ignoring us while customer is complaining \
and the IP was never part of any spam lists/black lists...
--
Best Regards,
Andrian Visnevschi
[Attachment #3 (text/html)]
<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div \
style='font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000'>I'd \
go to the MailOps list.<br><br><div><span name="x"></span><br style="color:rgb( 0 , 0 \
, 0 );font-family:'times new \
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!important;float:none">-----</span><br style="color:rgb( 0 , 0 , 0 \
);font-family:'times new \
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!important;float:none">Mike Hammett</span><br style="color:rgb( 0 , 0 , 0 \
);font-family:'times new \
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style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: \
</b>"Andrian Visnevschi via NANOG" <nanog@nanog.org><br><b>To: \
</b>nanog@nanog.org<br><b>Sent: </b>Tuesday, December 6, 2022 4:09:07 \
AM<br><b>Subject: </b>Microsoft 365 Delisting Service<br><br><div dir="ltr">Dear \
community,<div><br></div><div>Is there anyone from the Microsoft 365 team here ? or \
is there anybody who has contacts of any representative who can help with IP \
delisting ?</div><div><br></div><div>We are a cybersecurity company, protecting \
organizations from our own cloud. Our IP ranges always had a good reputation and all \
online public services show our IPs as good, and not listed on any spam lists / black \
lists. </div><div><br></div><div>We have a customer who is using 149.19.194.91 \
IP. We checked it into all public services for IP reputation and everywhere it shows \
up as GOOD. </div><div>Anyway using Microsoft 365 Services, all emails are \
rejected:</div><div>"<i>Unfortunately, messages from [149.19.194.91] weren't \
sent.</i></div><div><i>Please contact your Internet service provider since part of \
their network is on our block list (S3150).</i>"<br \
clear="all"><div><br></div><div>We tried to delist the IP 149.19.194.91 many times \
through <u><i><a href="https://sender.office.com/" \
target="_blank">https://sender.office.com/</a></i></u> but it never worked... \
All the time we submit the request, it says that it requires escalation, we ask for \
escalation and nothing happens, we are not getting any feedback for \
weeks...</div><div><br></div><div>At the outlook ipStatus(<u><i><a \
href="https://sendersupport.olc.protection.outlook.com/snds/ipStatus.aspx" \
target="_blank">https://sendersupport.olc.protection.outlook.com/snds/ipStatus.aspx</a></i></u></div><div>) \
I don't see any of our IPs having an abnormal \
status... </div><div><br></div><div>Has anybody encountered the same issue ? How \
did you get it resolved ? It looks very hard to cooperate with Microsoft, they keep \
ignoring us while customer is complaining and the IP was never part of any spam \
lists/black lists...</div><font color="#888888"><div><br></div>--<br><div \
dir="ltr"><div dir="ltr"><p class="MsoNormal"><span \
style="font-family:Arial,sans-serif;background-image:initial;background-position:initial;background-repeat:initial"><b><br></b></span></p><p \
class="MsoNormal"><span \
style="font-family:Arial,sans-serif;background-image:initial;background-position:initial;background-repeat:initial"><b>Best \
Regards,</b></span></p><p class="MsoNormal"><span \
style="font-family:Arial,sans-serif;background-image:initial;background-position:initial;background-repeat:initial">Andrian \
Visnevschi</span></p></div></div></font></div></div> </div><br></div></body></html>
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