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Exchange 2010 DNS and Naming question

Posted on 2010-08-27
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Last Modified: 2012-06-27
Hi - I'm new at Exchange 2010 (having last looked at Exchange 2000, ten years ago!).

I've just installed my first Exchange 2010 server in my domain, and of course, it took the default server.domain.com domain name for the Organization name.  All the user mailboxes now have user@domainname.com for their email addresses.

The problem is - I don't want that to be the email address that my users who connect to this Exchange server.

I want my DNS MX records (hosted by GoDaddy) to point to this Exchange Server with the address of mail.domain2.net   and I want my user email addresses to have user@domain2.net .


So my questions are:

1)  How many MX records (only 1 server) should I have for DNS and what name should they point to?

2)  What DNS settings should be configured in Exchange 2010?   ServerConfig/Hub Transport/Internal and External DNS Lookups?

3)  What FQDN should be on my send and receive connectors?

4)  What else am I missing that needs to be configured so that this mail server will be found with the name mail.domain2.net and the user accounts will have the email addresses of user@domain2.net?

 

Please help me - I'm very confused as to how to accomplish this.

Thanks in advance!
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Question by:penny6
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6 Comments
 
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Accepted Solution

by:
endital1097 earned 2000 total points
ID: 33547655
1. you only need one MX record that points to the A record for mail.domain2.net
2. that depends on your internal DNS configuration, but in most cases the default of use server DNS works
3. your send connector should match your external A record and the only way your receive connector can is if you create a separate one for anonymous connections
4. for mail flow you should also have an external PTR record for your external IP that points to your A record (ISP must create), you should create an SPF record
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LVL 32

Assisted Solution

by:endital1097
endital1097 earned 2000 total points
ID: 33547658
oh, and you can update your users addressing by modifying the accepted domains configuration (organization - hub transport) and the email address policy
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Author Comment

by:penny6
ID: 33547764
ok - I'm really a beginner at this, so forgive me...

1. I have done that!
2.  If I leave it as "use network card DNS settings" for the internal and external DNS lookups what DNS server will they be looking at?  

Additional info:  My current configuration is that we have 2 network cards in the server.  One for external and one for internal.  The DNS settings on both cards currently list the DC in our domain as the primary DNS server and the GODADDY DNS server as the secondary DNS server.  GODADDY is hosting our domain2.net site and so all of our DNS records are with them.  We are hosting SharePoint 2010 in our domain and our users will often come from outside the domain (logging on to our AD through a browser to see their SharePoint site) and they have their own email servers that we aren't hosting.  We want them to only ever see the site domain2.net and alert emails from SharePoint that are from SharePoint system accounts that have the address of xxxx@domain2.net

Any mailboxes that we host on our Exchange Server we also want to have with the user@domain2.net email address.

3. I can create an additional send connector.  Do I need to create an additional receive connector also?

4. Just to verify, my ISP should have an MX and a PTR record that points to the A record we already have with them for the Exchange server?  And where should I create the SPF record?  On my internal DNS server on the Domain Controller?  

I'm lost with all these DNS servers and all these addresses!


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LVL 32

Assisted Solution

by:endital1097
endital1097 earned 2000 total points
ID: 33547800
2. they will use the DNS settings for the adapter that matches the bindings for the connector. typically only the internal dns server is configured for dns on an internal server. the internal dns server is configured to use the external dns server as a forwarder. (recommended)

3. to use your external dns name for the hostname for inbound connections you must have a separate or new receive connector

4. you work with whoever hosts your external DNS to setup the A, MX and SPF record. the ISP will get the PTR (they own the IP address)
here is a tool for generating the SPF
http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/
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Author Comment

by:penny6
ID: 33547942
2.  Thanks for the advice on the forwarder - that sounds like a much better way than we're doing it now.

3.  I will create both an additional send and receive connector - thanks!

4.  We have the following:

4 hosted servers with The Planet (DC, SQL Server, SharePoint Server and Exchange Server),  
Public DNS with GoDaddy - A and MX records for the public ip address, and the mail.domain2.net address with them
Internal DNS on our DC - We don't have an SPF records or PTR records, as far as I know.  

So I understand that the SPF should go on the GoDaddy DNS server but:

a) are the PTR records for Reverse Lookup?
b) And should they go on our DC DNS?

I'm not clear on where the PTR records should be (forward, or reverse lookup) and on which DNS server they should be hosted (GoDaddy or our DC DNS server).

Sorry - I'm a beginner!!


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LVL 32

Expert Comment

by:endital1097
ID: 33552703
a) yes, a lot of domains will refuse connection unless they can perform a reverse lookup
b) your ISP owns the IP address so you need to contact them
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