I currently host my own exchange 2016 server internally. I currently have a .org domain.
I just created a new DNS lookup zone of .com for the same domain, both internally and externally, in external DNS.
I also added under exchange, under accepted domains, the new domain.com, but I'm still not able to receive emails externally.
Internally, I can send from my .org email to my .com email, and works fine, but just doesn't work when I send an email from my gmail to my .com email address.
Can anyone point me in the right direction?