Another Use For Hashbusters

Another not-so-random block:

    <p><font face="Verdana" size="1">wz^wznfba(bet</font></p>

Target's email address hidden in a hashbuster

    "wz^wznfba(bet" = rot13("jm@jmason.org")

Result: SpamAssassin rule EMAIL_ROT13

        [a-z(\]-]+\^[a-z-]+\([a-z]{2,3}

Other substitution and rotation ciphers being used, but rot-13 is still by far the most common