Facebook have warned that some groups are sending out emails with a zip files asking people to click and reset the password on Facebook. This is off course not true Facebook would never send you an email asking you to open a zip file or reset the password. If you still not sure if the email come from Facebook or not you can go to the website online and ask to reset your password. You will get a new email with a code to your cell phone or email. Do not click on any link from the email with the zip just type in Facebook.com in the internet browser.
If the email comes from a Hotmail, Yahoo Gmail account you can return the email to “abuse” at email provider and tell them about the fake email.