This warning is currently posted on the official Warner Bros. Harry Potter web site:

ALERT – PUBLICIST FRAUD ADVISORY

Several emails have been circulated during the past few months which purport to be from the Harry Potter film publicity office, in particular from vanessa.davies@publicist.com and amy.robertson@publicist.com.

These are not the correct e-mail addresses for publicists Vanessa Davies and Amy Robertson and any e-mails received from these addresses are a hoax.

We are taking action to investigate this matter with appropriate authorities. If you have received any correspondence from these addresses, please forward to legal.uk@warnerbros.com.