The answer to any sales calls that won't stop (I found this out by happenstance): "We're a consultancy selling services for these tools/products." or "We're

The answer to any sales calls that won't stop (I found this out by happenstance): "We're a consultancy selling services for these tools/products." or "We're a competitor, and I registered for your free trial for competitive research." In my case, these are true answers, but I never get more than one sales call from anyone. I can't help you on the email front, but it's easy to set up filters for those.