I get a lot of email about job opportunities, almost none of which interest me enough to call back about them. Which doesn’t mean that the next one won’t.  I review the location and description in about 10 seconds, close to 100% of them then get deleted – not even close to a good fit. A couple times a year I might see something that makes me ask about the salary and usually the answer filters them out. If I don’t get around to reading them, that’s ok too. It’s not quite spam, because I’m interested in the topic (if for no other reason than to see how the market is doing).  It’s absolutely about throwing spaghetti at the wall to see what sticks. Messy, analog, but interesting and I suspect reasonably effective given the cost of doing it. I much prefer it over the recruiters who insist on calling to discuss opportunities before they email. Calls are easily 5 minutes and a distraction.