Author: Ted Cooper Date: To: exim-users Subject: Re: [exim] Multiple messages per connection when queue-running
Matthew Hodgson wrote: > Hi all,
> I have the problem of a very large mail queue which contain lots of
> messages sent to the same remote address. Unfortunately the MX servers
> for the remote domain are rather slow, and so when performing a queue
> run in exim 4.66 the messages are trickling through very slowly as each
> connection takes about 30 seconds to establish.
> How can I persuade exim to send multiple envelopes to the same MX server
> in the same SMTP connection to avoid the connection overhead? I've
> found the queue_smtp_domains option, which appears to only be useful for
> messages which are yet to be queued (and kills the possibility of
> instant deliveries if there's no need to queue). How do I get normal
> queued messages to add entries to the wait-remote_smtp hint database, so
> that when delivering a message to the remote server it will hand the TCP
> connection over to deliveries for other pending messages?
> Enlightenment would be hugely appreciated :)