We’re making a significant update to help keep your custom email domains (CEDs) secure and your deliverability strong. Kajabi will now require Strict DMARC (Domain-based Message Authentication, Reporting, and Conformance) for all custom email domains.
Why This Change Matters
DMARC works hand-in-hand with SPF (Sender Policy Framework) and DKIM (Domain Keys Identified Mail) to prevent bad actors from spoofing your email address.
Moving to a Strict DMARC policy:
Protects your brand reputation from phishing and impersonation attempts.
Keeps your messages out of spam folders and safely in subscribers’ inboxes.
Future-proofs your email deliverability as major providers adopt stricter standards.
Email providers such as T-Online.de have already made Strict DMARC mandatory, and Google, Microsoft, and Yahoo are tightening their policies to require stricter authentication. By adopting this now, you’ll stay ahead of industry changes and ensure your Kajabi emails continue to reach your audience. Learn more about Google's New Sending Requirements.
What You Need to Do
The steps you’ll take depend on whether Kajabi or your DNS provider manages the DNS for your custom email domain.
You can confirm by navigating to:
Kajabi → Settings → Marketing Settings → Email Settings
If you manage your own DNS provider, you will see an Enable Strict DMARC button.
Note:
Even if your custom email domain isn't managed through Kajabi (DNS), you'll still need to add the required DNS records, enable strict DMARC, and domain must include 'kjbm' subdomain as part of your setup. This ensures your domain stays secure and that your emails continue to deliver reliably.
Custom Email Domains Managed by Kajabi
No action is required from your side.
For Kajabi-managed DNS, your custom email domain will automatically update. You will see kjbm added to the beginning of your domain (for example, [email protected]).
This change will take effect on February 9, 2026.
Custom Email Domains Managed by Your DNS Provider
If you manage your own DNS, follow these steps to stay compliant and maintain high deliverability:
Go to Kajabi → Settings → Marketing Settings → Email Settings and click Enable Strict DMARC to view your DMARC record information:
Go to your DNS provider and add the required DMARC information. Follow the instructions in this guide: Add a DMARC Record to Your DNS.
Wait for DNS propagation. This process typically takes 5 minutes, but it can take up to 48 hours.
Return to Kajabi and select Enable Strict DMARC to confirm that your DNS has propagated.
Once propogated, Kajabi will display Strict DMARC Enabled.
What Happens If You Don’t Update
If these steps are not completed by March 19, 2026:
You will still be able to send email through Kajabi.
However, your custom email domain will be disabled.
Your emails will be sent from Kajabi’s shared sending pool instead (for example,
[email protected]).