Use FREE & FREEWARE software

Link Encoder

The Link Encoder enables you to encode your email and other links on your website.
So they can't be extracted by rogue internet spiders looking for email addresses to add to junk mailing lists.
This will help prevent you from getting huge amounts of spam.
The Link Encoder will generate links and text you can copy and paste into your web pages and emails.

Download Link: http://www.itsamples.com