When I'm not connected to the Internet, how can I arrange for mail to other hosts on my local network to be delivered, while at the same time mail to Internet hosts is queued without any delivery attempts?

I have a dial-up machine, and I use the queue_smtp_domains option so that remote mail only goes out when I do a queue run. However, any email I send with an address anything@aol.com is returned within about 15 minutes saying retry time exceeded, and all addresses are affected.

How should Exim be configured when it is acting as a temporary storage system for a domain on a dial-up host?

I have queue_domains or queue_smtp_domains set, and use -qf to force delivery of waiting mail when I dial in. How can I arrange for any new messages that arrive while I'm connected to be delivered immediately?

I have an ISDN connection and would like a way of running the queue automatically when it is up.

When I dial up to collect mail from my ISP, only the first 10 messages get delivered immediately; the remainder just sit on the queue until a queue runner process finds them.

RFC 1985 specifies that the SMTP command ETRN host.domain causes all mail queued for that host, no matter what domain it's for, to be delivered. Why doesn't Exim support this?

If email has been deferred to a member on a local mailing list (implemented through forward files), and one of our ETRN clients is on this mailing list, the -R won't flush the mailing list message for that client.

I would like to have a separate queue per domain for hosts which dial in to collect their mail.