Configuring DKIM
DKIM configuration is available in MailSuite Pro. You'll need to generate DKIM keys, one of the services which can do that for you is:
https://tools.socketlabs.com/dkim/generator
You will need to supply the keys in DNS TXT record of your domain, and in Exim configuration file /etc/exim4/exim4.conf
:
DKIM_FILE = /opt/afterlogic/etc/ssl-certs/dk.key
DKIM_PRIVATE_KEY = ${if exists{DKIM_FILE}{DKIM_FILE}{0}}
DKIM_DOMAIN = ${lc:${domain:$h_from:}}
remote_smtp:
driver = smtp
dkim_domain = DKIM_DOMAIN
dkim_selector = mail
dkim_private_key = DKIM_PRIVATE_KEY
user = afterlogic
group = afterlogic
interface = xx.xx.xx.xx
Most of those lines are already there but they're commented out, be sure to uncomment those and specify selector (mail
in the sample, can be anything else) and the proper external IP.
/opt/afterlogic/etc/ssl-certs/dk.key
is the file where DKIM key needs to be saved, by default the file isn't there so you need to create it.
If you have multiple domains, create DKIM for one of them, and then supply the same DNS TXT record for all the other domains involved.