DKIM verification set up error 2

[aksel.reedi]

Hi!

I am getting this error when trying to complete DKIM verification for email sending.
“Cannot create a non-glue record that is beneath a delegated child zone. (Code: 89018)”.

I have followed every tutorial I could find googling, but nothing works.
Here are the records that need to be set up. I noticed that if you remove “._domainkey” from the Name box it goes through but does not verify later on.

Here’s what Klaviyo (an emailing service using SendGrids systems. I don’t have a SendGrid account) needs me to enter into DNS settings

Here’s the error that shows up when I try to save these settings.

[sandro]

What’s the domain and for which record did you get that error message?

[aksel.reedi]

The domain is joinothers.com

And the records are:
cname kl._domainkey kl.domainkey.u161779.wl030.sendgrid.net
cname kl2._domainkey kl2.domainkey.u161779.wl030.sendgrid.net

[sandro]

You have set up a sub-domain _domainkey.joinothers.com. You will either need to drop the NS records or set up the records in question with the other nameservers.

[aksel.reedi]

@sandro

set up the records in question with the other nameservers

What do you mean by that?

[sandro]

That that domain is managed by those other nameservers and you either configure it with them or remove the NS records in question and configure it on Cloudflare.

[sandro]

You most likely best choose the first option I mentioned and drop the two NS records on the DNS screen. Then you can set up the other records.