Customize the Message Sent to New Senders from Knowspam.net

"Who is it that can tell me who I am?" asks King Lear. This is a really good question, but it is possibly not the ideal question to ask of new senders when they try to reach you through Knowspam.net and it prompts them to prove they are human...
If it's your email address that Knowspam.net is keeping free of spam, it should also be your message that is sent to unknown senders automatically, prompting them to authorize themselves.