PrestaShop 1.6.1.12 - Neodesila e-maily z Customer Service

Z nejakeho duvodu mi nejdou odesilat emaily zakaznikum via BO Customer Service. Jako e-mail pouzivam od C4 mail box ale pri pokusu o odeslani mi vraci :

"email na google e-mail odeslan z meho BO emailu: info@yunnancraft.com"

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

host gmail-smtp-in.l.google.com [2a00:1450:400c:c0c::1b]
SMTP error from remote mail server after end of data:
550-5.7.1 Unauthenticated email from yahoo.com is not accepted due to domain's ( ja ale nepouzivam yahoo v PS ) ???
550-5.7.1 DMARC policy. Please contact the administrator of yahoo.com domain if
550-5.7.1 this was a legitimate mail. Please visit
550-5.7.1 https://support.google.com/mail/answer/2451690 to learn about the
550 5.7.1 DMARC initiative. 35si24457494wrj.58 - gsmtp

Dobrý den,

to je opravdu zvláštní. Jakou emailovou adresu máte nastavenou v sekci "Zákazníci > Kontakty na zaměstnance" pro zákaznický servis?

Dobry den,

omlouvam se, chyba na me strane. opraveno. diky za napovedu

S pozdravem
Alex Z.