How can I integrate Zarafa with an Exim mailserver?

Use debconf to configure Exim4 for which domains Exim should consider itself as the final destination. You can do this with the following command:

dpkg-reconfigure plow exim4

Create a file called 700_exim4-config_zarafa in the directory /etc/exim4/conf.d/router. Add the following text in the file:

zarafa:

debug_print = "R: zarafa for $local_part@$domain"

driver = accept

domains = +local_domains

check_local_user

transport = zarafa_pipe

require_files = +/usr/bin/zarafa-dagent

no_verify

no_expn

Create a file called 30_exim4-config_zarafa_pipe in the directory /etc/exim4/conf.d/transport. Add the following lines to the file:

zarafa_pipe:

debug_print = "T: zarafa_pipe for $local_part@$domain"

driver = pipe

path = "/bin:/usr/bin:/usr/local/bin"

command = "/usr/bin/zarafa-dagent $local_part"

return_path_add

delivery_date_add

envelope_to_add

Finally you need to add the following line to the file /etc/exim4/update-exim4.conf:

dc_localdelivery=zarafa_pipe

Now start the update-exim4.conf script and reload Exim4 with the following commands:

update-exim4.conf

etc/init.d/exim4 restart