Custom domain bug: removed custom domain can not reply emails
My family many years uses google business with custom domain email.
Tried to use Apple custom domain for several days (configured everything was needed and email address was working on apple servers) but for us gmail was better option so removed custom domain at apple and set up again in google.
One person now on iPhone can not reply to emails received on this custom domain (for others - everything is working good). She can send new without issues but reply did not works. When open outgoing email, press "from" and choose same account (did not change anything) - email is sent successfully. On macbook can use this account without any issue.
iPhone 13 Pro Max