This is for those trying to understand IP addresses. An IP address is your internet address which is much like your street address. As you all get email, you can look in the options of the incoming mail for the "originating IP" (the source IP).
Now, how to figure it out who owns the IP address. So I used my Smart Phone and looked up my IP by going to www.ipchicken.com. The address was 18.104.22.168. So who owns this address? Well to find out you do this.
1. Go to https://whois.arin.net
2. In the top right hand corner you see "SEARCH Whois". You key in that IP and you are returned that it's owned by "Telus Communications in Burnaby BC".
Now, that doesn't mean I live in Burnaby but it means Telus owns the IP so if you have a threatening person you can contact Abuse and let them know.
Now, sometimes you'll get a strange response in whois.arin.net. For example, the PERB IP is 22.214.171.124 (according to netcraft.com). So say you run through the PERB IP in this whois.arin.net. Well you get this that it's owned by RIPE in Amsterdam. To make it simple it means the IP address is overseas. That's expected with PERB because of Bill C36 forcing their hand. BUT, if a pooner is mailing you for a session, it is unlikely he's overseas, so he's using a proxy or VPN to hide his address. This makes it more difficult for you to trace. Ask yourself, do you want to engage a potential client who is "masking" their IP. The answer is you should not.
Questions welcome via PM's. ./staysafe
So what should you do? If you get a questionable email with an IP assigned outs