Office 365 Connector

[David Miller]

I need to route outbound O365 email from one of my email domains so it will pass through my cloud-based mail hygiene system.  Currenlty, all email leaves O365 byapssing this device.  Do I need to configure a new Send Connector with a rule that will send outbound messages from a specific mail domain through our hygiene system?  Any tips on how I might go about setting this up?

Thanks!

[#2]

Hi David,

The best solution to archive what you need is to implement a Hybrid Exchange an implement Centralized Mail Transport to send to your hygiene system.

[#3]

Hi Nuno

Thanks for your response.  We are an Exchange 2013 Hybrid environment hosting 15 mail domains.  We implemented Proofpoint as our mail hygine application.  All inbound mail passes through that service fo SPAM, AV and other mail services.  Can you elaborate on your suggestion about a Centralized Mail Transport?  Where would I configure the connector?  On-Prem or Office 365?  All of my mailboxes are in the cloud.

Thanks.

[#4]

Hi David,

It's configured in Hybrid Configuration Wizzard.

You can have to configure the Centralized Mail Transport, here is the options https://technet.microsoft.com/en-us/library/jj659055(v=exchg.150).aspx

Please select this "Enable centralized mail transport" on this screen.

Mail flow options page

The rest of the questions in the HCW from this page on are related to the mail flow options. The experience and windows you see from this point forward may vary depending on the options selected. For more information on the mail flow options you have please review this article.

Figure 15: Mail flow options

Source article - https://blogs.technet.microsoft.com/exchange/2015/09/04/introducing-the-microsoft-office-365-hybrid-...

[#5]

I'm not sure Centralized Mail Transport is the right solution here. If I wanted to change the outbound path for just one domain, I would consider Conditional Routing in EOP based on the sender domain:

https://technet.microsoft.com/en-us/library/jj950234(v=exchg.150).aspx

[#6]

I agree with you Andy, if is just to one domain the better is conditional routing.