I migrated from an old server to a new server. My example.com is stored on a separate server. I need to send mail from email@example.com using my miab mail.example.com server. My miab server will not allow me to send email because it does not think I own the user address, firstname.lastname@example.org.
I think the issue may be due to the TLS certificate. How would I transfer the TSL certificate from my old miab server to the new one?
TLS (SSL) Certificates
A TLS (formerly called SSL) certificate is a cryptographic file that proves to anyone connecting to a web address that the connection is secure between you and the owner of that address. You need a TLS certificate for this box’s hostname (box.example.com) and every other domain name and subdomain that this box is hosting a website for (see the list below).
Provision a certificate:
Certificates cannot be automatically provisioned for:
example.com Domain control validation cannot be performed for this domain because DNS points the domain to another machine (A 123.456.78.961).
www.example.com Domain control validation cannot be performed for this domain because DNS points the domain to another machine (A 123.456.78.961).