[Exim] Mail problem PLEASE HELP.

> The first problem is the incoming mail connections:
>
> If I restart the mailer daemon regardless of whether its sendmail or exim it
> works fine for the first ten minutes. But in the background up to 100
> incoming messages hold up all of the availible child processes and
> eventually time out with errors like this:
>
> 2000-09-04 08:46:27 13ViWu-0005GS-00 Completed
> 2000-09-04 08:46:38 SMTP data timeout (message abandoned) on connection from
> (mt
> a06.mail.mel.aone.net.au) [203.2.192.87]
> 2000-09-04 08:46:48 SMTP data timeout (message abandoned) on connection from
> (ro
> nnie.spin.com.au) [203.89.235.98]
> 2000-09-04 08:47:24 SMTP data timeout (message abandoned) on connection from
> ns1
> .rocknet.net.au [203.37.227.3]
>
> these messages are the messages that people are recieving. It is not only
> Aussie traffic as though suspected I have had a good look, while most of it
> is ( around 70% ) there is a others coming in from outside AU. for some
> reason though most of them appear to be coming from Telstras
> teapot25.domain0.bigpond.com [139.134.5.173] or another of their hosts.
>
> As far as outgoing is concerned, it appears that any email of size causes
> the email to timeout and and error returned. Also if the above problem gets
> to big, it causes connections to be refused that port and no incoming or
> outgoing to mail be be processed until it is restarted.
>
Any help / ideas appreciated.

Regards
Nathan