> > This is the biggest problem with "fake" MX records for me. If your > primary MX is not available, you will simply lose mail from some > senders. It's entirely their "fault" for violating the RFCs but the > mail is still lost, and it isn't easy to explain whats going on to > your users/customers. Greylisting gives me about the same effect but > it works with a bigger percentage of borken servers and I can easily > exclude broken mailservers if needed. >
Aaron, so what greylisting techniques are working best for you? Wil Hatfield
