iCloud plus domain
I am trying to use my email address with a company domain for some services on my website like "contact form", "enquiry"...
It doesn't work. All my emails work well with a company domain name,
through mail app on Mac, but I don't know what is settings like SMTP and others are.
I have received massage:
"535: 5.7.8 Error: authentication failed"
I am using Gmail settings on my website for services (contact us, enquiry...) and work well, but I definitely need to move my all email setting to iCloud.
MacBook Air (2020 or later)