"Unauthenticated email from is not accepted due ...550-5.7.26 DMARC policy"?

Hi all
i’m a bit messed up - because - i don’t know how to handle this;
Mails to GMAIL are constantly rejected with this reason code;

Unauthenticated email from is not accepted due to domain’s 550-5.7.26 DMARC policy
Control unauthenticated mail from your domain - Google Workspace Admin Help

support.google.com

Control unauthenticated mail from your domain - Google Workspace Admin Help

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The problem i really don’t understand is - the policy itself just says DKIM and SPF must be inline - and authentication of Email is not really a part of it.

So maybe i miss something - i do set DMARC policy to ‘NONE’ now - because gmail is a big provider - but it may not solve the issue.

Anyone had the same issue and solved it? and what did you exactly do?

My maildomain is
mail.jru.me
Checks of SPF and DKIM passes; And besides google - even outlook.com accepts my mails - which i had a long time of trouble with.

Thanks for checkin my post