What you need to do is use the resolver library plugin mechanism to
implement your own script that decides which recipients are local or
not. The script is invoked for each recipient. In your case it should
simply return the current mmsc hostname and that should do the trick.
(Look at
I am attempting to use the Send MMS service to submit a message for
local delivery. However I am unable to get the gateway to accept the
message instead it says Don't know how to route!
The config is shown:
group=core
...
group = mbuni
name = blux
hostname = mymmsc.com
local-prefixes = 27