Author: Jeremy Harris Date: To: exim-users @ exim. org Subject: Re: [exim] serialize_hosts and single tcp connection batch mail
Paul wrote: > This is in the configuration on host01 and host02:
>
> mail02_transport:
> driver = smtp
> hosts = mail02.externalmail.ournetwork.com
> serialize_hosts = mail02.externalmail.ournetwork.com
> connection_max_messages = 500
>
> And we see in the logs on host01 and host02
>
> 2005-07-19 02:45:09 1DuHeq-0004Ne-CG == someusers@???
> R=mail02_director T=mail02_transport defer (-53): connection limit
> reached for all hosts
>
> What we found was a single connection was normally established and only
> one or two exim processes running on mail02 (excellent!).
> However when host01 and host02 got new incoming mail (as in 24x7) they
> would try and deliver and then defer instantly as the connection limit
> had been reached for mail02. > This just leave us with a large amount of
> backlogged mail on the queue's locally at host01 and host02 that won't
> get delivered for a long time.
So, I'm confused. You don't want more than one connection open, but
you somehow expect mail to not be delayed in a queue as a result?
