... > Hi, > I am new to this list and I have little experience with netfilter, but I > think I can help you. However, I need some clarification: > > When you say your machines need to be able to send email from each of those > 1600 public IPs, do you mean your 3-8 machines serve as SMTP relays for 1600 > hosts, each with a public IP? Do you mean that you are *not* the ISP, and > are providing only smtp service for the hosts? ESP. Think Mailchimp just a little smaller. Lots of clients need lots of IPs (it's a reputation thing, and quite an interesting computing problem, see http://blog.mailchimp.com/should-you-send-from-a-dedicated-ip-address/ or just search for "email marketing dedicated ip" for an intro). A -- echo '16i[q]sa[ln0=aln100%Pln100/snlbx]sbA0D4D465452snlbxq' | dc This will help you for 99.9% of your problems ... -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html