MS proxy doesn't really do NAT, heres what happens in an MS Proxy environment: Winsock proxy client gets loaded on client PC, this replaces the Winsock.dll with a 'special' proxy version that 'shuttles' all winsock traffic thru the proxy. (notice the...
I to have seen this. I always use the no fixup smtp 25 command on the PIX. The fixup protocol is a good idea, but until all sendmail servers are updated or migrated to Exchange server, older sendmail servers seem to have a problem.Dave
Do you have a nat session and static conduits on the DMZ interface?? I have configs for what you are trying to do. Email me for them dclark@ADVIZEX.COM