I have hybrid Office 365 with exchnage 2010 I want to use the filtering and compliance solutions that are already in my on-premises spam firewall.
Mail sent to the internet from cloud mailboxes and onprimses must route through my on-premises spam firewall. .
please suggest me below step is correct or not.
1. MX record to my on-premises ip addresss
2.Create outgoing connector on office 365 portal (any email to our public ip address)
3.Create receive connector on primses.
One more question ,later staget if i decommision exchnage 2010 and keep only onprimses firewall and office 365, how mail flow will happend.