USING BUTTONS OR IMAGES
One way to try to avoid email harvesting is to use a
button or image to disguise your email link. Unfortunately this is
not foolproof and here are the drawbacks:
For example you might publish your email like this so that the
user an send you an email by clicking an image of your email
address thus: (the link is a dummy for demonstration purpose)

Your page's HTML code would look
like this:

Spam robots will
trawl your pages for signs of email addresses
The code in yellow is
a dead giveaway and says:
"Hey Spammers come here and send me lots of
junk and then use my address to send junk to other people
including my friends, business associates and customers. I would
also like my web domain to be blacklisted as a source of junk
mail. I really don't mind all these people being annoyed with me-
Honest!"

The same drawback applies to using buttons if
the mail link code is on your page so the best way to avoid being
hijacked is to use:
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