Will you do the following to stop spam:
You are person A. You write to Person B, who is a complete stranger to you, asking for some information. Person B writes back to you in good faith. However, you have set up an anti-spam filter that sends an auto email to every new address. Your auto email program sends an email to Person B asking B to visit some link so that Person A can make sure that B is not a spammer!
On the other hand, how will you react as person B?