refused to talk to me: 501 Connection rejected by policy

I need a solution

Hello,

we have a new IP from our Datacenter for one Server.
The Customers on the Server cant send Mails to “messagelabs”.

Please Remove ASAP the IPs 173.212.234.48 and 2a02:c207:3002:389::1

Thanks a lot.

Greetings from Germany

Jay

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