Configuration of exchange 2019 hybrid with other spam server.

Contributor

Hi, 

Anyone who knows which items do I consider if I make exchange 2019 hybrid server with other spam server as wblock.

 

As is environment

Server : Exchange Server 2019  

All mailbox users : about 800 (On-Premise)

Spam server : wblock

MX record : wblock

 

To be environment

Server : Exchange Server 2019 hybrid configuration.

Mailboxes : On-Premise Exchange Server(500 users) , M365 Exchange Online (300 users)

MX record : wblock

Mail routing : mail centralized

 

Customer want to use their own wblock spam server with exchange 2019 hybrid server to secure their onprem user mailboxes. I am not sure is it ok to communicate with between exchange 2019 hybrid and M365 Exchange online using MRSProxy protocol when we do mail migration to EXO on blocking wblock.

Do I request to open in/out bound port as 80, 443 going through wblock without blocking mail migration? Please give tips to me. This is first time exchange hybrid migration with other spam server, I am confused of it. 

 

 

Thx

hongwoo jin 

 

 

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