On Tue, Apr 17, 2012 at 04:44:49PM -0400, Patrick Domack wrote: > > Why bother whitelisting any ip address? I have my system flag the > outgoing and incoming email address.
Am I defensive or stupid for wondering what's the point of your question? Surely people whitelist all kinds of things with different methods? Why do dnswl.org or other IP whitelisting exist? There are too many angles to consider. > If the from address and the to address, are reversed from how the > email went from me to them, AND it passes other checks, like spf, > THEN that email can come directly in. Nothing wrong with this. Of course it's just one method amongst others and targets a pretty "narrow area". > This isn't affected by shared servers, whitelisting incorrect ip > addresses, and other issues. Makes it sound like there are severe issues. All this is rare and in reality the whitelisting we are talking about is only about skipping some MTA rules that might directly delay or reject mail. Things change the more deeper you apply. > I also run most of my domains with different incoming and outgoing > ip addresses for email. But are they in the same subnet? Even if they aren't, it makes no difference. There are plenty enough servers that are. Different methods target different things. I'm truly sorry if I sound harsh or defensive, but that may be the direct Finnish way. Still, is it too much to ask for looking at things from many angles or backing up claims with any kind of statistics or science instead of personal gut feelings?
