troubleshooting Question

Exchange Server 2010 to 2016 mailflow problem

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whenz asked on
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I installed a new Exchange Server 2016 in an existing Exchange Server 2010 environment.  I am now having trouble to send/receive mails between the Exchange Servers.  There is no Firewall between the both Servers, they are in the same LAN.

I am going nuts, do you have any idea why the mailflow does not work?
Arjun Vyavahare
Technical Consultant

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