20.165.134.12 - Microsoft netblock but SpamCop sends reports to the spammer

[Snowbat]

20.160.0.0 - 20.175.255.255 is Microsoft but SpamCop reports 20.165.134.12 directly to the spammer via the broken "Using rdns to route to correct Microsoft department".

https://www.spamcop.net/sc?id=z6788026871zda04df1b43771d7d7ec913e7d185f4cez
Tracking message source: 20.165.134.12:

Routing details for 20.165.134.12
[refresh/show] Cached whois for 20.165.134.12 : [email protected]
Using best contacts [email protected]
Using rdns to route to correct Microsoft department
host 20.165.134.12 = a60.351pontoslivelo.com (cached)
abuse net a60.351pontoslivelo.com = [email protected], [email protected]

If reported today, reports would be sent to:

Re: 20.165.134.12 (Administrator of network where email originates)

[email protected]
[email protected]

[petzl]

4 hours ago, Snowbat said:

https://www.spamcop.net/sc?id=z6788026871zda04df1b43771d7d7ec913e7d185f4cez
Tracking message source: 20.165.134.12:

Just had a look. IMO this provider uses or did Microsoft for clients email?
Could be a legacy issue?
Google search results
https://tinyurl.com/2edys2pj

Edited December 6, 2022 by petzl