Need help setting sub domain on iCloud

Hello,

I have a domain on Infomaniak, say : mydomain.net

I want to add a subdomain on iCloud, say i.mydomain.net

Everything goes well except DKIM

I have tried 5 different settings :

Host = sig1._domainkey

Value = sig1.dkim.i.mydomain.net.at.icloudmailadmin.com.

--

Host = sig1._domainkey

Value = sig1.dkim.i.mydomain.net.at.icloudmailadmin.com (without the "." at the end)

--

Host = sig1._domainkey.i.mydomain.net

Value = sig1.dkim.i.mydomain.net.at.icloudmailadmin.com.

--

Host = sig1._domainkey.i.mydomain.net

Value = sig1.dkim.i.mydomain.net.at.icloudmailadmin.com  (without the "." at the end)

Host = i._domainkey.mydomain.net

Value = sig1.dkim.i.mydomain.net.at.icloudmailadmin.com.

In fact the five of them are set up, I was like "there has to be one of them working" lol

But i'm still getting the "Check your DKIM record" error after more than 24hours

Any help would be appreciated

Thank you very much