On Thu, March 4, 2010 3:19 am, Jay Hennigan wrote:
Facebook, like many similar sites, rather aggressively requests that its users supply their email credentials so that the site can "invite" their contacts. All of them. Every stinkin' email address they can mine.
Also, Facebook sends mail from many different IP ranges, and non-Facebook (but @facebook.com) spam mail manages to get sent from overlapping IP ranges on occasion. Facebook tends to send mail from address+id@facebook.com, where 'address' is something like 'notifications' and 'id' is some random string. Some spam mail packages cannot distinguish this from address@facebook.com, which many of the spammers who try to spoof Facebook use (using the same common 'address'es as Facebook does). If you don't watch what you are doing, this can result in significant amounts of false-positives on manual sender-based blacklists. Daniel T. Staal --------------------------------------------------------------- This email copyright the author. Unless otherwise noted, you are expressly allowed to retransmit, quote, or otherwise use the contents for non-commercial purposes. This copyright will expire 5 years after the author's death, or in 30 years, whichever is longer, unless such a period is in excess of local copyright law. ---------------------------------------------------------------