Fluctuating DMARC Success Rates Due to Non-Brand Domain Emails Sent via Klaviyo

Question

I have been monitoring our DMARC success rates via Google Postmaster and noticed significant fluctuations recently. Upon reviewing the DMARC reports, I found that a number of emails sent through Klaviyo were not originating from our branded domain but rather from domains like ksd3.klaviyomail.com. This issue seems to be impacting our overall email deliverability and DMARC success rates.

Has anyone else experienced similar issues with emails being sent from non-brand domains through Klaviyo?
What steps can be taken to ensure that all emails sent through Klaviyo use our branded domain to maintain consistent DMARC compliance?
Is there a setting within Klaviyo that I might have missed that controls the sending domain for different types of email communications?

Any guidance or insights from the community would be greatly appreciated as I navigate this issue to improve our email deliverability and compliance.

Thank you in advance for your help!

kaila.lawrence · Accepted Answer

Hey @kevinlau! This is a great question. We have a couple things to investigate here:

In Settings > Organization > Default sender email address, make sure your branded domain is entered.
Not a lot of people know changing this setting does not automatically change it in any existing campaigns or flows which is where a lot of these instances are hiding. In this case, in the same menu as above, next to your default sender email you'll see the Apply sender email to all messages button. I’d quadruple check your older flows that were set up a long time ago just to be super sure everything updated properly.

Start there and let me know how you go!

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