One possible solution to the problem is to use dynamically generated throw-away email-addresses. You can also encode some kind of signature. Then just hide the

One possible solution to the problem is to use dynamically generated throw-away email-addresses. You can also encode some kind of signature. Then just hide the monstrously huge address behind a pretty "Please Email me" Link: mailto:chris-hHz389aASKJkjhqweuiSHADKJweiuqzrq@example.com If Spam increases (or, say, whenever more than 3 emails have been received at one particular address), you shut down the address. I once implemented the receiving, hmac/signature checking, part for the exim mail-server and a general address-generator class in python and php. But never actually put it to use.