<div>
I assume your behind a firewall. <br />
Have you remapped the ports for mail traffic to flow to the exch server?<br />
Also, has the DNS records for that server been update to match the new IP address?
</div>


I assume your behind a firewall.
Have you remapped the ports for mail traffic to flow to the exch server?
Also, has the DNS records for that server been update to match the new IP address?

<div>
Hi,<br />
It is not recommended to change IP of Exchange server if you not an expert which will create issues for you. <br />
Most important is your NAT in firewall/router and the internal DNS entries.<br />
<br />
Please check this article for the things to consider when changing IP of Exchange server.<br />
<a href="http://www.zerohoursleep.com/2010/01/5-things-to-consider-when-changing-the-ip-of-an-exchange-server/" rel="ugc">http://www.zerohoursleep.com/2010/01/5-things-to-consider-when-changing-the-ip-of-an-exchange-server/</a>
</div>


Hi,
It is not recommended to change IP of Exchange server if you not an expert which will create issues for you.
Most important is your NAT in firewall/router and the internal DNS entries.

Please check this article for the things to consider when changing IP of Exchange server.
http://www.zerohoursleep.com/2010/01/5-things-to-consider-when-changing-the-ip-of-an-exchange-server/ [http://www.zerohoursleep.com/2010/01/5-things-to-consider-when-changing-the-ip-of-an-exchange-server/]

<div>
If you changed your lan ip make sure you also modified your nat config on your router/firewall to match your outside to inside ip address.i did once along long time ago with 03 ...i had to reboot both my dc and exchange box.
</div>


If you changed your lan ip make sure you also modified your nat config on your router/firewall to match your outside to inside ip address.i did once along long time ago with 03 ...i had to reboot both my dc and exchange box.

<div>
For changing IP you don't need to restart DC and Exchange. You just clear the old DNS entries from the DNS server and clear the DNS cache. <br />
Just restart the Exchange AD Topology service if required.
</div>


For changing IP you don't need to restart DC and Exchange. You just clear the old DNS entries from the DNS server and clear the DNS cache.
Just restart the Exchange AD Topology service if required.

<div>
I have changed all for DNS intern and on my firewall, but it will not gonna work....<br />
any ideas ?
</div>


I have changed all for DNS intern and on my firewall, but it will not gonna work....
any ideas ?

<div>
ok now some emails are coming in but OWA ist still not working.
</div>


ok now some emails are coming in but OWA ist still not working.

<div>
Please open the port 443 on the firewall/router to the new IP.<br />
Here is a link to the ports Microsoft Recommend.<br />
<a href="https://technet.microsoft.com/en-us/library/bb331973.aspx" rel="ugc">https://technet.microsoft.com/en-us/library/bb331973.aspx</a>
</div>


Please open the port 443 on the firewall/router to the new IP.
Here is a link to the ports Microsoft Recommend.
https://technet.microsoft.com/en-us/library/bb331973.aspx [https://technet.microsoft.com/en-us/library/bb331973.aspx]

<div>
Hi MAS,<br />
I have checked your link.<br />
Now all emails are coming in.<br />
<br />
With this link I have seen, the external IP was a different one.<br />
This was because of a second WAN interface. This is now stopped.<br />
<br />
Thanks for the link.
</div>


Hi MAS,
I have checked your link.
Now all emails are coming in.

With this link I have seen, the external IP was a different one.
This was because of a second WAN interface. This is now stopped.

Thanks for the link.

<div>
<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
I have changed the IP of EXCH and now the server is not sending emails and not receiving it.<br />
I have EXCH2007.<br />
Do you have any ideas ?
</div>
</div>


Hi Experts,

I have changed the IP of EXCH and now the server is not sending emails and not receiving it.
I have EXCH2007.
Do you have any ideas ?

after IP change of EXCH not getting new emails...

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.