Decipher outlook email headder

[mickmcpaddy]

I have just got an email from someone enquiring about some work but I think its a scam, I have viewed the message source but it doesn't make a lot of sense to me.

The email if from a gmail address so hardly a professional setup and in the many many lines of text in the headers is this.

Authentication-Results: spf=pass (sender IP is 209.85.192.195) when you look it up it originates from the USA in California, Mountain view or something, is this not Googles headquarters and just what the email is routed through?

I just use outlook.live to view my emails.

[mickmcpaddy]

How do you find out who actually sent the email then from the headers?

[mickmcpaddy]

It says something similar, slighly different IP address and code but is -8hrs etc.

Would it be likely that an email sent from a person in the UK to another person in the UK would be routed via California though?

I'm pretty confident its ascam email and don't want to reply in case I get obliterated with spam but at the same time don't want to lose a decent in the unlikely event its not a scam.

Thanks.