php smtp from yandex to yahoo or mail does not fall

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April 14, 2019, at 08:00 AM

I am using a Wordpress booking plugin. I'm using Yandex SMTP in this plugin. Yandex to Yahoo e-mail:

"550 5.7.1 Email rejected per DMARC policy for yahoo.com"

Gives a fault. I've added the DMARC rules. This error persists after adding the rules.

I also received DKIM txt code from Yandex and added it to the host's DNS settings.

Rent Charter Buses Company
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