Migrateing Exchange Servers

Posted on 2012-08-30
Last Modified: 2012-08-31
I just went through along delay with DNS when updating our Company' DNS when changing Public IP addressing scheme. I am also in the process of  migrating from SBS 2003 to windows 2008 and exchange server 2010. I am use the link below as a guide;

I am at the point ready to migrate mail boxes to the new server once I migrate the mail boxes I need to change my MX record and reverse look up in DNS again. Demazter say's to leave both exchange server in place for a couple of days before doing the uninstall of Exchange on the SBS Server. Should I change my MX record and reverse look up in DNS  immediately after migrating the  the mail boxes or should I wait until I am ready to  uninstall exchange on the SBS Server. How every I do it the MX record and DNS record change over will be done Friday so as to minimize problems.
Question by:jatkins-ccn
    LVL 52

    Expert Comment

    Should I change my MX record and reverse look up in DNS  immediately after migrating the  the mail boxes - Right after and prefer to do it during Weekend as it can take upto 24-72 hours for replicating amongst all Internet DNS servers.

    - Rancy
    LVL 9

    Expert Comment

    When you Migrate to Exchange 2010 from Exchange 2003, there are sevaral talk you should do.
    1) Change yout Outbound mail flow from Exchange 2010 HUB servers to Internet.(COnfigure Send Connectors.
    2) Remove InterGrg Replication Connector
    3) Move Public folder replica to one of Exchange 2010 mailbox servers
    4) Change OAB Genaration servers.
    5) Remove Resipiant update services
    6) Convert Address list to Exchange 2010 servers
    7) Convert Domin security DLs to UNiversal Security groups
    8) Remove Mailbox databases and Public folders.
    You dont need to change External DNS records except AUtodiscover record. And you change change mailflow by change your NAT settings.

    Also you can refer the below link
    LVL 15

    Expert Comment

    If both servers are on the same local network then you wont need to change the MX record or the reverse DNS settings.  However, you will need to change the firewall and direct all traffic that was going to your old server to your new server.

    LVL 8

    Expert Comment

    by:Jeff Perry
    If possible create new MX records for the new server with priority and leave the old records in place with lower priority.

    Once the migration is complete and mail is being served from the new server, shut down the old one and delete the low priority MX records.

    This method works best when your registrar is authoritative for your domain.

    If you have setup your registrar to point to a 3rd party as the authoritative then you should not have to worry about the lapse for replicating your changes and you can make changes as needed.

    Author Comment

    The more I think about this the more confused I get. Currently we are using 1 public IP address for all internet traffic and our exchange server. When I put the new server in place I will be using a separate Public IP address for the exchange server and internet traffic. My original plan was to change the public address for the new exchange server and Use the existing Public IP address for Internet traffic.
    In thinking this out I may be able to use the existing Public IP address for the Exchange server, and Change the Internet facing Public address. Our Webpage is hosted outside of our network so it will not affect the A record. I think this would be faster and less intrusive unless I am missing something. And the MX record will not change.
    LVL 52

    Accepted Solution

    Dont get confused just stick to what you did and wait for sometime.

    - Rancy
    LVL 15

    Expert Comment

    Thats what I do when I upgrade to SBS 2008.  No need for a second public IP.

    Featured Post

    Do email signature updates give you a headache?

    Do you feel like you are constantly making changes to email signatures? Are the images not formatting how you want them to? Want high-quality HTML signatures on all devices, including on mobiles and Macs? Then, let Exclaimer solve all your email signature problems today.

    Join & Write a Comment

    Resolve Outlook connectivity issues after moving mailbox to new Exchange 2016 server
    Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
    In this video we show how to create a Contact in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Contact ta…
    The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager

    730 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    18 Experts available now in Live!

    Get 1:1 Help Now