It is well know that once an e-mail address have been published on a home page it will not take a long time before it is flooded with spam.
The usual sollution to this is to to either use a feedback form (that do not use the mail address in clear text as a parameter) or a use a Captcha to reveal it.
I found a new good Captcha service and API that I would like to recommend: http://mailhide.recaptcha.net/
Here is an example of how it could look like using my e-mail address:
fred???@inexor.se