[exim] tweaking communication between private and public exi…

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Auteur: AJ
Date:  
À: exim-users
Sujet: [exim] tweaking communication between private and public exim MTA
Hello,

For one reason and another, in our environment, we have an exim MTA on our
private network, that clients on the 'private side'(LAN) use to send
Internet Email. This server then relays via private IP, to a second exim we
have connected to the public Internet. The public server is tuned to conform
to standards avoiding 'tar pitting', etc.

That all being said, I'd appreciate some hints on tuning the communications
between the private server and the public server. Some local users
occasionally send to reasonably long lists of their clients. Since the
private & public servers talk via private LAN, this communication can be
wide open.

What I'm trying to avoid is doing something on the public server that would
make it non-compliant with the 'norms' of the large carriers, while I try to
make it more receptive to the private server. I'm trying to make the private
server respond quickly to clients and get it's email pushed to the public
server as quickly as possible.

I hope the above scenario makes sense. Below is some of what I've done so
far.

I appreciate any advice, so I don't shoot myself in the foot!.... AJ

Private server:
----------------------
split_spool_directory = yes
queue_run_max = 20
remote_max_parallel = 20
#connection_max_messages 40
disable_fsync = true

smtp_accept_max = 1000
smtp_accept_max_per_connection = 4000
smtp_accept_queue_per_connection = 100
smtp_accept_max_per_host = 200

Public Server:
---------------------
split_spool_directory = yes
queue_run_max = 20
remote_max_parallel = 20
disable_fsync = true

smtp_accept_queue_per_connection = 100