<div>
Nothing else should really need changing. &nbsp;Make sure that your MX record is set correctly and that any firewall rules from the outside in are updated. &nbsp;
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Nothing else should really need changing.  Make sure that your MX record is set correctly and that any firewall rules from the outside in are updated.  

<div>
Your firewall is the only thing that needs to change. &nbsp;Is your Exchange server set up for NAT on your firewall?
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Your firewall is the only thing that needs to change.  Is your Exchange server set up for NAT on your firewall?

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Well, I have a firewall, but it is not issuing the addresses. &nbsp;My exchange box is the DHCP server as well. &nbsp;<br />
<br />
<br />

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Well, I have a firewall, but it is not issuing the addresses.  My exchange box is the DHCP server as well.  




<div>
Kind of a new question. &nbsp;Since changing the ISP my users can receive email, but they cannot send. &nbsp;I have another guy that is onsite and telling me that the error is basically saying. &quot;mail.&lt;***&gt;.local &nbsp;#550 smtp 553 relaying denied. &nbsp;<br />
<br />
Any thoughts?
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Kind of a new question.  Since changing the ISP my users can receive email, but they cannot send.  I have another guy that is onsite and telling me that the error is basically saying. "mail.<***>.local  #550 smtp 553 relaying denied.  

Any thoughts?

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<div class="content wysiwyg-content">
Basically it was all stated in the subject...<br />
<br />
Do I need to change the public IP address somewhere in Exchange or 2003 server if I have a new isp issuing me a new public IP?<br />
<br />
I am a bit new to exchange so I am trying to figure this out before I end up with nightmares I don't know how to fix. &nbsp;<br />
<br />
Is there anything else that will change that I am not aware of? &nbsp;Other than the mx record, I have already changed that. &nbsp; <br />
<br />
Thanks in advance for your help, <br />
<br />
- ruPPa
</div>
</div>


Basically it was all stated in the subject...

Do I need to change the public IP address somewhere in Exchange or 2003 server if I have a new isp issuing me a new public IP?

I am a bit new to exchange so I am trying to figure this out before I end up with nightmares I don't know how to fix.  

Is there anything else that will change that I am not aware of?  Other than the mx record, I have already changed that.   

Thanks in advance for your help, 

- ruPPa

Do I need to change the public IP address somewhere in Exchange or 2003 server if I have a new isp issuing me a new public IP?

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

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.