Ok, here is the IP for the domain/mail server. 144.217.180.201
Hope that is the IP you are looking for, since none of the first post posts seem to either work, or mention IP address.
Or do you want the ip from the subject line of the email? [SpamCop Abuse Report (172.67.23.149) id: 84748602] spam
Also, I just want to know if I was understanding the email. I did not sign up for this service, and was called in out of the blue to look at this email.
Thank you in advance for any help understanding what is going on.