The idea is to nest parens in an embedded comment. Good emailers (ie anything that is standards-compliant) will recognize that the addresses are valid and accept them. Regular expression engines will not.
However it I have heard that Exchange is not a good emailer. Whether this is a feature or a bug for the technique is a matter of personal perspective...
In reply to Re: Email anti-harvester code
by tilly
in thread Email anti-harvester code
by Anonymous Monk
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |