Hi All,

We are planing to implement Exchange Server 2013 in our origination in split role model. The  Client Access server and Mailbox server  will be in different VLAN, I would like to know which all  port need to open for the communication and configuration of these roles.

1. Client Access server > Mailbox server (bi-direction)

2. Client Access server > Active Directory (bi-direction).

Mailbox server and Active Directory will be in same VLAN

Also

Firewall > Client Access server required port for Outlook,Outlook Anyware, SMTP from spam filter.

Does the Mailbox server required any access to external network or only Client Access server required.

• Edited by Sreekumarpg Friday, July 10, 2015 4:07 AM

Hi,

Additional as Ed mentioned, here's an article about network ports for client and mail flow used in Exchange 2013:
https://technet.microsoft.com/en-us/library/bb331973(v=exchg.150).aspx

Also, ports for Exchange services and component used in Exchange 2003, for your reference
https://technet.microsoft.com/en-us/library/bb124075%28v=exchg.65%29.aspx

Thanks

Hi SreeKumarPG,

Q1.Hope you already have the answer for the first question on Ports.

"Microsoft do not support restricting or altering network traffic between internal Exchange servers,DC,Lync"

Q2."Does the Mailbox server required any access to external network or only Client Access server required."

A: Depends on few factors. Like will you be using CAS SMTP proxying capability or not. Do you have an Edge\SMTP gateway Server present or not.

Details available on the post from Allen. Basically you might want to have minimum of port 25 open on both sides for external\DMZ to Mailbox.