Hi @Joe Tang,

Thanks for sharing.

The reason why your emails are showing "via ksdn.klaviyomail.com" is because your account is currently still on Klaviyo's shared sending domain. To get rid of the "via ksdn.klaviyomail.com" on your emails, you would need to set up a dedicated sending domain (Setting Up a Dedicated Sending Domain). This way, emails will be sent from your dedicated domain, rather than Klaviyo's domain.

Here are some community posts regarding this:

Additionally, if you'd prefer to have someone set this up for you, we do have a partner portal where you can find someone who should be able to help! You can find that here. 
 
Please also note that it can take up to 24 hours for the records to propagate after they are added to your domain before they can be verified within Klaviyo.

Thanks!
Alex