Exchange 2003 and Outlook

Aidan · Joined: 28 Jan 2008 Posts: 1

Hi,

What ports do I need to open on the firewall on my exchange server to allow
my outlook clients to connect?

We have a LAN with our Exchange Server acting as Domain controller. We are
running outlook 2007 and Exchange 2003. When I enable the firewall on the
Exchange server our Outlook Clients can't connect.

Thanks

Archived from group: microsoft>public>exchange>connectivity

John Oliver, Jr. [MVP] · Joined: 05 Aug 2007 Posts: 823

Why are you enabling a firewall on your Exchange Server and for that matter
your DC? Place a Firewall at the perimeter of your network and open the
necessary ports for Exchange, typically 25 and 443.

--
John Oliver, Jr
MCSE, MCT, CCNA
Exchange MVP 2008
Microsoft Certified Partner

"Aidan" wrote in message @TK2MSFTNGP04.phx.gbl...
> Hi,
>
> What ports do I need to open on the firewall on my exchange server to
> allow my outlook clients to connect?
>
> We have a LAN with our Exchange Server acting as Domain controller. We
> are running outlook 2007 and Exchange 2003. When I enable the firewall on
> the Exchange server our Outlook Clients can't connect.
>
> Thanks

Austin Chen · Joined: 30 Jan 2008 Posts: 53

Would you share more your exchange environment?

"Aidan" wrote:

> Hi,
>
> What ports do I need to open on the firewall on my exchange server to allow
> my outlook clients to connect?
>
> We have a LAN with our Exchange Server acting as Domain controller. We are
> running outlook 2007 and Exchange 2003. When I enable the firewall on the
> Exchange server our Outlook Clients can't connect.
>
> Thanks
>
>

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