> i guess i could also slap exim on my other setup, but thats another
> mess opening a listening port25 service on the same box assp listens
> on... --
Uhm... why opening another port 25 ?!? Sorry but I've no clue about
your setup so I wonder why you'd need such a thing, see, if you have
a separate box for ASSP you may just have a mailflow like this
* incoming
Internet -> ASSP(25/tcp) -> local SMTP (125/tcp) -> LAN mailserver
(25/tcp)
* outgoing
LAN mailserver -> ASSP(25/tcp [1]) -> local SMTP (125/tcp) -> Internet
[1] The second port 25 is the ASSP "relayport" but it's bound to a
separate
IP address assigned to the same box on which ASSP runs and such
an
IP will be used as the smarthost for the LAN mailservers; such a
second
IP may even be a private one, as long as it's reachable from the
LAN
mailservers (and btw this second IP:port should NOT be exposed to
the internet but only visible fromt the LAN mailservers)
As for email routing, inbound email will be queued and routed using
the SMTP running on the ASSP box which will be configured to route
incoming email to the correct local (LAN) SMTP server; outbound
email will also be queue by the SMTP sitting on ASSP box and then
routed to the destination SMTP server; by the way, if you want to set
up a more simple flow, you may just route incoming emails directly
from ASSP to the internal mailserver for a given domain; I prefer
offloading such a task to the local SMTP to free ASSP as quickly
as possible and let it to do its job of filtering emails
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