Re: [exim] smarthost and multiple messages per connection

> From: Alexander Ufimtsev

> By default, exim establishes a separate connection to a remote smtp
> server, even if this remote server is configured as exim's only smart host.
>
> Since our smarthost does not allow more than 10 connections per minute,
> it causes significant delays in mail delivery with default configuration.

Try:

remote_smtp:
driver = smtp
serialize_hosts = *