Hi Nate,

I’m not in any way associated with Microsoft, but

> 10. des. 2020 kl. 18:07 skrev Nate Burke via mailop <[email protected]>:
> 
> Hello, I was hoping someone from Microsoft could contact me offlist for help 
> getting our server (66.151.17.22) removed from the Microsoft blacklist.  I'm 
> having problems sending to outlook.com/msn.com and others with domains hosted 
> at office365.  I can't find any issues with the server, and I don't appear to 
> be on any other blacklists, but all messages to Microsoft are either getting 
> rejected or sent to the spam folder.  The mailserver has been at this IP for 
> many many years, but these issues just started about 10 days ago.
> 

reading the message you quote,

> Any help would be appreciated.
> 
> Error message;
> 
> <<< 550 5.7.1 Unfortunately, messages from [66.151.17.22] weren't sent. 
> Please contact your Internet service provider since part of their network is 
> on our block list (S3150). You can also refer your provider to 
> http://mail.live.com/mail/troubleshooting.aspx#errors. 
> [BN8NAM12FT057.eop-nam12.prod.protection.outlook.com]

it looks to me they’re really telling you to talk to your upstream (Internap if 
I read the whois for 66.151.17.22 correctly.


> The link does not appear to have any way for admins to view/remove the server 
> from the blacklist.

As is par for the course. It is the natural default assumption that the problem 
is caused elsewhere.

FWIW, the last interaction I had with the powers that be at Microsoft over a 
related manner, it took a few days after I had published a blog article 
(https://bsdly.blogspot.com/2018/02/a-life-lesson-in-mishandling-smtp.html 
<https://bsdly.blogspot.com/2018/02/a-life-lesson-in-mishandling-smtp.html>) 
before any visible reaction from their end.

- Peter

—
Peter N. M. Hansteen, member of the first RFC 1149 implementation team
http://bsdly.blogspot.com/ http://www.bsdly.net/ http://www.nuug.no/
"Remember to set the evil bit on all malicious network traffic"
delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.




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