[Dovecot] LMTP proxying strategy with multiple recipient delivery

[Luca Palazzo]

Hi Timo and All,
how does Dovecot act when an MTA tries to deliver a multiple recipient 
message to a LMTP proxied system?

Does it uses server affinity table for each recipient?
I use lmtp_destination_recipient_limit = 1 setting in postfix to avoid 
multiple recipient delivery. Is it right?

I use lmtp_destination_concurrency_limit = 1 too, but i think that it's 
useless or, maybe, it can make performance worst.

Luca