On Sat, Feb 4, 2012 at 5:42 PM, Varad Gupta <varad.gu...@fosteringlinux.com> wrote: > >> Thanks. Does that mean that if I have secure authentication enabled >> with Postfix, then I am covered. I think so, and sorry for being >> insistent, >> but I am paranoid here. >> > > As regards open-relay yes (with TLS enabled), but not necessarily against > heavy traffic (DDOS or flooding). iptables shall help there.
Sorry, do not quite follow. I do have an iptables rule that only accepts SMTP. How do I have extra protection by introducing a further routing of packets only to my MTA? Do you mean that having a single destination makes it harder for a DDOS attacker to guess at the valid IP? Regards, Gora _______________________________________________ Ilugd mailing list Ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd
