Exim4 Integration

Adding these two simple files sends a single copy of each incoming AND outgoing email to your MailArchiva server. Since exim will not deliver duplicate emails, you dont have to worry about that either!
All of this was done with Ubuntu 7.10 and Exim 4.67.
If you have a working Exim system, you should know to backup your entire /etc/exim4 directory.
If you've never used Exim before, I suggest the free VMWare Player and the Ubuntu710server appliance download (http://www.vmware.com/appliances/directory/1067). I built all this using exactly that. I'll also hopefully be posting a MailArchiva VMWare appliance soon!

On to the real stuff:
If you're using a split config, create a new router file:
/etc/exim4/conf.d/router/150_exim4-config_mailarchiva_route

(If you're not using the split config, put this as the first router. ORDER MATTERS on routers!)
Put this in it:

---

# router/150_exim4-config_mailarchiva_route
#################################
# route to mailarchiva archiving service

mailarchiva_route:
  debug_print = "R: mailarchiva_route for $domain"
  driver = manualroute
  transport = remote_smtp_mailarchiva
  route_list = * localhost
  self = send
  unseen
  no_verify

---

Using a split config, create the new transport:
/etc/exim4/conf.d/transport/30_exim4-config_remote_smtp_mailarchiva

(If you're not using the split config, put this anywhere in the tranports section. Order does not matter on transports.)
Put this in it:

---

### transport/30_exim4-config_remote_smtp_mailarchiva
#################################
# Change port number for mailarchiva (should be called
# from mailarchiva_route

remote_smtp_mailarchiva:
  debug_print = "T: remote_smtp_mailarchiva for $local_part@$domain"
  driver = smtp
  port = 8091
  allow_localhost

---

If using a split config, run: sudo update-exim4.conf.template -r
Regardless of which config, now restart exim: sudo /etc/init.d/exim4 restart

That should do it! You can test it with:
exim4 -bt local@email.address

You should see something like:
R: mailarchiva_route for mailarchiva.localdomain
R: lowuid_aliases for user@mailarchiva.localdomain (UID 1000)
R: system_aliases for user@mailarchiva.localdomain
R: userforward for user@mailarchiva.localdomain
R: procmail for user@mailarchiva.localdomain
R: maildrop for user@mailarchiva.localdomain
R: local_user for user@mailarchiva.localdomain
user@mailarchiva.localdomain
    <-- user@mailarchiva.localdomain
  router = local_user, transport = mail_spool
user@mailarchiva.localdomain
    <-- user@mailarchiva.localdomain
  router = mailarchiva_route, transport = remote_smtp_mailarchiva
  host localhost [127.0.0.1]


Notes:

1. This assumes you're running MailArchiva on the same server as Exim. To change the server, change the 'route_list = * localhost' to 'route_list = * YOUR.SERVER.NAME'. You can also remove 'self = send' and 'allow_localhost' if you change the server. I'd suggest just commenting them out.
   
2. This assumes the default MailArchiva SMTP port of 8091. If you've adjusted that port, change the 'port = 8091' to match the correct port.