Have a Pix 520 with a SMTP relay virus scanner machine in the DMZ. With fixup protocol smtp turned on when I telnet to port 25 from the outside of the firewall to the translated address the SMTP Header is just a line of asterix's with a 220 in the middle and I get smtp protocol violation errors on the smtp box itself when mail starts routing in until I turn off the protocol fixup. Anybody else have any experience with this or do I maybe have an issue?
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...