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Filter Office 365 Connector on port 25


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Hello,

 

I'm trying to publish a public URL on port 25 in order to connect with Office 365. As it is a public URL, I would like to filter the incoming traffic.

 

I used the Microsoft website as reference, but it didn't work:

Quote

*.mail.protection.outlook.com
40.92.0.0/15, 40.107.0.0/16, 52.100.0.0/14, 104.47.0.0/17, 2a01:111:f400:7c00::/54, 2a01:111:f403::/48

 

I created a responder policy like this

! CLIENT.IP.SRC.IN_SUBNET(40.92.0.0/15,) && CLIENT.IP.SRC.IN_SUBNET(40.107.0.0/16) ... && CLIENT.IP.SRC.MATCHES(mail.protection.outlook.com).

 

But, when setting up the connector in Office365 everthing is blocked.

 

Can someone help me ?

 

Thanks in advance.

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