I will have an Exchange server that will host 2 authoritative accepted domain, meaning i’ll have a few mailboxes with domain suffix @a-domain.com and a few with @b-domain.com.
The question is –
1. Do i need to have a mx record for both domains pointing to different host a record, but same ip?
2. Do i need to have both domain in my certificated? with their a records
3. How do i design my name spaces