Enabling DKIM signing for your domains can help you keep your email content intact throughout the delivery process, barring threat actors from accessing and altering your emails. This helps preserve your identity and eradicate spam and phishing attacks.
Creating DKIM Record for Elastic Grid
Not much information is available as to whether Elastic Grid (Zift Solutions) does support or recommend DKIM authentication for your domains. You can directly get in touch with their support team for enquiries regarding the same!