I also get these mails from paypal, but I think the mails are not from paypal. They have had a bad history with being hijacked etc... But I have never had an issue with any payments through the site and has always worked well and is secure.
Just delete the spam... Simple...
Chris (formerly R@nSiD)
Twitter
When the power of love overcomes the love of power the world will truely know peace - Jimmy Hendrix
Winner SM VFX Challenge 1
3rd Place SM SteamPunk Challenge (May 2007)