I’ve got MiaB set up and it’s awesome. As someone who has had to setup postfix, SPF, DKIM, etc… myself in the past I was so relieved and grateful to find MiaB and take back control of my email again.
I notice in the alias section that all the hostmaster, postmaster, administrator aliases forward to administrator_at_subdomain by default. However, if I send mail from any of my other email domains to one of these aliases the mail is rejected. If I send email from an account that is the mail servers top level domain it works, or if I change the administrator alias to be the top-level domain it works.
Is this expected behavior? My MX records for my domain and subdomain are set correctly according to the status page. If it is expected, then why are the defaults for the standard aliases set to the subdomain and not the top level domain to allow anyone to send to these aliases?
Thanks in advance for any insights anyone can give me.
p.s. Sorry if this is hard to follow. The forum won’t let me post anything that looks like a link as a new user.