You appear to have missed the part about this being my own mail server. And I don't need any more luck; my initial problem is solved (I no longer see spam from

You appear to have missed the part about this being my own mail server. And I don't need any more luck; my initial problem is solved (I no longer see spam from Facebook, and I am taking steps to ensure they are aware of their problem, in case they weren't). The problem was worth the time I spent on the config; it is manifestly a waste for me to involve the FTC, since I don't have to worry about Facebook's spam anymore and am willing to eat the tiny amount of bandwidth involved.