[vdubjunkie]

In case my attempts at being clear failed me again..

Ideal configuration
ext_if: accept smtp for locally hosted domain only on port 25
ext_if: accept smtp for any domain on an ambiguous high number port (later to be locked down to a range of ips matching my mobile phone network)
int_if: accept smtp for any domain on port 25

Secondary configuration
ext_if: accept smtp for locally hosted domain only on port 25
int_if: accept smtp for any domain on port 25

specifically what to change in postfix main.cf or whatever to accomplish this would be wonderful. I'm sure somebody knows postfix. Thanks in advance for any help anybody can provide.