Hello,
I also have the same issue.
I am also trying to send a email from a domain that is different from the website domain.
When I run a test on the contact form and try sending a email I get this message “Your message was sent successfully. Thanks.”.
However, the email is never receive the email at the recipient side.
I do understand the concerns about spoof email. Can I use a different email domain, or not. And if I can, how can I configure it to work properly?
Thank you in advance for your support with this.