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In my config I am running a PIX 515e Firewall with a domain and exchange server running on the inside interface. I have web servers and smartermail server running in the DMZ. Everything works great, except sending email from SmarterMail email account in DMZ to Exchange email account on inside interface...

OK, I know my subject is not right. I could not think of a better subject. What I am having a problem with is I can telnet my SM Box and put in any send from address and send it to whoever. From what I can tell this will keep putting me on a BLACKLIST. I have tried to turn on require authenticate before...