Growing up, my parents taught me to not trust any phone call you get from a stranger. When I was going off to college, dad sat me down and gave some logical life lessons. One was (paraphrased) "If you get a phone call from the power company or similar saying you need to pay this or that and they want any information, ask for the person's name, ID number and any other information related to their call (ticket number or similar). Then politely end the call, then go to the power company bill, look at the number printed on that and call that number and give them the information. If it is legit, you know you're talking to the real people." (Dad was in his 60's at that point, so he wouldn't use a word like legit. . . hence the paraphrase).
Anyway, I do the same thing with any email I receive that comes from a questionable source. Look at what they are claiming and then launch your own browser, navigate to the known address (i.e. adobe.com etc) and look for what the email is stating. If the email says 'call this number' and you still think it is legit, call the number on the real site, not whatever number they claim.
I don't get a huge amount of spam (amazingly) but one I got today was about a '$500 Walmart card I purchased, call this number if you didn't order it.' Those get completely ignored, obviously, and most others are easily debunked without other research.
The one or two I get per month that seem mildly possible either pass or fail the "I'll call you back" test. I don't click on links, hence the reason I get little spam, I assume.
Sandy.