Having read through your posts, I think I should clarify what I meant,
and personally would have liked to have seen or would have found useful
when I first started using Exim.
1) A usable config, no matter how simple. The sample config is very
thorough but now 20 pages long. I usually have to delete 18 or so pages
just to make it readable. An example is shown below, this is only
intended a starting point. I could live with a "clunky" config as long
as I know I'm not running an open relay.
2) From this starting point I would expect questions like:
how can I specify 2 local domains instead of just 1
how do I list hosts in a separate file
what is relay_from_hosts needed for
what does the "!" mean in "! +local_domains"
3) I also would expect someone to be willing to help me understand why
the subnet is written as /8 instead of /255.0.0.0 or what an MX record
actually does. It isn't strictly about exim but thats no reason to tell
someone to go away and RTFM or print out the full spec.
If I don't understand that its a router I need to perform a certain
function, how would I know which part of the spec to read?
4) As I learn, I would like to be shown how to change a working config
to modify it's behavior and progress in small step eg:
domainlist local_domains = example.com : example2.com
could use a text file instead:
domainlist local_domains = /etc/exim/local-domains.txt
Below is the simple config I described as a clunky but usable starting
point (I never actually managed to get Exim3 working and gave up
completely, chosing to learn postfix instead).
Thanks
Jason
######################################################################
# EXIM CONFIGURATION #
######################################################################
domainlist local_domains = example.com
hostlist relay_from_hosts = 127.0.0.1 : 10.0.0.0/8
acl_smtp_rcpt = acl_check_rcpt
######################################################################
# ACL CONFIGURATION #
######################################################################
begin acl
acl_check_rcpt:
accept domains = +local_domains
endpass
verify = recipient
accept hosts = +relay_from_hosts
deny message = relay not permitted
######################################################################
# ROUTERS CONFIGURATION #
######################################################################
begin routers
dnslookup:
driver = dnslookup
domains = ! +local_domains
transport = remote_smtp
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
no_more
localuser:
driver = accept
check_local_user
transport = local_delivery
cannot_route_message = Unknown user
######################################################################
# TRANSPORTS CONFIGURATION #
######################################################################
begin transports
remote_smtp:
driver = smtp
local_delivery:
driver = appendfile
file = /var/mail/$local_part
delivery_date_add
envelope_to_add
return_path_add
group = mail
mode = 0660
######################################################################
# RETRY CONFIGURATION #
######################################################################
begin retry
# Address or Domain Error Retries
# ----------------- ----- -------
* * F,2h,15m; G,16h,1h,1.5; F,4d,6h
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