Hello @yousef,
Welcome to the Klaviyo Community!
I think it would be helpful to share more details on the issue you’re having to see if other Community members have experienced a similar behavior and can provide a solution.
Am I correct in thinking that this sounds like your DNS provider is unable to add CNAME records pointing to sendgrid.net in order to setup a dedicated sending domain?
From reading the response, this sounds to be directly related to a DMARC issue - which Klaviyo has no control over. In fact, DMARC (Domain-based Message Authentication, Reporting & Conformance) is independent form Klaviyo and is something that is managed through your own domain policy.
If you have a DMARC policy in place, setting up and using a dedicated sending domain would allow your Klaviyo emails to pass your domain’s DMARC policy.
I would also suggest taking a look at some past Community post which touches on this topic. I’ve included some below that I think you mind find helpful to get you started:
I hope this helps!
David
To resolve the DMARC issue, ensure your domain’s DMARC policy is correctly set up. Since SendGrid isn't an option, consider using SMTPget for setting up your dedicated sending domain.