Authenticating messages with DKIM
Article Number: 1482 | Last Updated: Wed, Jun 29, 2016 11:15 AM
DomainKeys Identified Mail (DKIM) signs outgoing messages from Kerio Connect with a special signature to identify the sender. Your users thus take responsibility for the messages they send and the recipients are sure the messages came from a verified user (by retrieving your public key).
To sign messages with a DKIM signature:
Enabling DKIM in Kerio Connect
To see which domains have DKIM enabled, add column DKIM enabled in section Configuration → Domains.
Your DNS records must include the DKIM public key for your domain. Without proper DNS records, Kerio Connect will send messages without the DKIM signature. Each message your users send will create an error message (see Error log).
Read article Configuring DNS for DKIM for more information.
If the domain includes also aliases, add the DNS record also to all aliases.
Testing the DKIM signature
If you want to test whether your domain signs messages with DKIM, you can use for example the DomainKeys Test online tool.