Hi Takayuki,
I have tried all of the things in the https://ww.wp.xz.cn/support/topic/sender-email-address-does-not-belong-to-the-site-domain-7/#post-11694954
It doesn’t make any sense to me what is happening now because each thing that you just listed sends me in circles. I really need proper support step by step to resolve this issue.
Thank you very much
