Poprosím o nastavení také na jb@ghbd.cz na doméně ghbd.cz

Děkuji

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host gmail-smtp-in.l.google.com [142.250.27.26]
    SMTP error from remote mail server after pipelined end of data:
    550-5.7.26 This mail is unauthenticated, which poses a security risk to the
    550-5.7.26 sender and Gmail users, and has been blocked. The sender must
    550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,
    550-5.7.26 DKIM checks did not pass and SPF check for [ghbd.cz] did not pass
    550-5.7.26 with ip: [213.109.165.44].