Implementing DKIM in Zentyal MTA with SoGO Rumi, June 14, 2023 To implement this authentication mechanism, you can use a third party software called OpenDKIM. These are the steps you have to follow to deploy DKIM. 1. Install the necessary packages: sudo apt-get install -y opendkim opendkim-tools 2. Create the folder for the DKIM keys: sudo mkdir -vp /etc/opendkim/keys 3. Generate the DKIM keys: sudo… Continue Reading