EOP in Hybrid deployment

Copper Contributor

Hi All,

I have one hybrid configuration where i have 100 mailboxes in O365 & 250 mailboxes in Onprem. Now mx record is pointed to O365 EOP and mails are receiving / sending through O365 to both online  users and onprem users. we have removed our old email security (Barracuda) after moving to hybrid.

 

My question is - can i continue this way to save the cost of Baraccuda or is there any problem from MS ? in EOP i have protected the domains instead of users. So basically all mails coming to specific domain will be filtered as per my understand.

Can someone provide more insight to this.

1 Reply
Yes, it works however MX record point to on-premise Exchange \ Email gateway or Office 365 for hybrid, btw, please consider EOP is good enough, sometimes Microsoft Defender for Office 365 is recommended:

https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/defender-for-office-365...