Re: [exim] mail delivery to smarthost very slow

On 2015-11-16, Jonas Meurer wrote:

> As you can see, the mails are sent to the smarthost one by one, with
> a new connection for each mail. Is it possible to make Exim4 deliver
> several mails together to the smarthost in one connection?
>
> The outgoing smarthost is definitely not the problem, it takes mail
> from other satellite mail servers much faster.
>
> I already tried to speed up mail delivery using the following settings,
> which didn't help at all:
>
> smtp_accept_queue_per_connection = 100
> remote_max_parallel = 30
> queue_run_max = 10
>
> Any suggestions?

Maybe set connection_max_messages in the relevant transport?