I am in the process of revisiting a question I have been attempting to solve for probably way too long; A question with regard to utilizing Office365 Exchange in combination with cPanel Exim to distribute domain emails between the two servers.
The MX records for my domain point to my Office365...
I have a a few licenses for Office 365 Enterprise E3 and a few licenses for Windows 10 Enterprise E3.
I have personal domain, personal.com, where DMARC and the SPF records and setup properly and working.
Then I have my two business domains.
I use PowerDNS as...