Re: [exim] limit parallel outgoing connections

> From: Giovanni Ferri

> I would like to limit outgoing connections to maximum of 4 simultaneous from exim4 to the next transport.
>
> I already tried to mix "remote_max_parallel=1" and "queue_run_max=4" (and viceversa) as stated elsewhere in the forum, but without any success.
>
> Confirmed by some tests of parallel sending, I continue to see >4 established connections (netstat) to the next hop.

You can limit to 1 connection at a time: in transport

driver = smtp
serialize_hosts = *