[Exim] Still on the steep bit of the learning curve....

I'm running 3.36 and I wonder if anyone could give me a brief rundown
of what happens when a pop3 user sends an email through exim to the
wide Internet.

What I do know is that the initial connection is by SMTP to the Exim
server. At least, I hope I know that. What happens then? I've read all
the docs, but currently haven't got my head around it. Does it go to a
"router"? How does the "router" get chosen to service a particular
message?

I prefer to learn by a) reading the docs b) trying things out, c) go
back to a), so I'm not that interested in buying books, but I'm open
to suggestion in this area. I've found that books are useful once
you've got your head around a few basic concepts - ie you've moved
from complete bozo to, well, not-so-complete bozo. But I'm open to
suggestions.

Note for Philip: This is by way of an apology for polluting the list
with questions about an obsolete release of your software. I've only
used Exim for a short while, and I've thoroughly enjoyed the
experience. I DO intend to upgrade to Exim 4 - Debian unstable now has
4.22 - when I can be fairly sure that I won't through my ignorance
stuff up my mail. In addition, this appears to be the only forum for
discussing Exim and requesting help with it. So please excuse my
question about this obsolete release.

Cheers,

Cliff
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