In "Step 5 (If Necessary): Create a Temporary Subdomain", how would I create the 'migrate.domain.com' and MX record as described?
If utilizing Microsoft Windows 2003 for DNS resolution, please see the following Microsoft Knowledgebase article 323445 titled "HOW TO: Create a New Zone on a DNS Server in Windows Server 2003" for more information:
http://support.microsoft.com/kb/323445/en-us
If utilizing Microsoft Windows 2000 for DNS resolution, please see the following Microsoft Knowledgebase article 308201 for more information:
http://support.microsoft.com/kb/308201/en-us
If Windows technology is not being used for DNS resolution for your environment, please see the appropriate vendors documentation on how to achieve this.
Once the subdomain is configured and the Exchange Recipient policy is set to receive mail (See Solution 28686 titled "In "Step 6: Create a Recipient Policy for the Temporary Subdomain", how would I create the 'migrate.domain.com' Recipient Policy as described?) for the subdomain, please send mail from a Notes mailbox to the subdomain address (i.e. 'UserName@migrate.domain.com') to validate email routing is working as desired prior to continuing.
ADDITIONAL INFORMATION:
This step does not apply if you are using the Microsoft Connector (native Notes addressing) for mail routing, or if you will migrate without coexistence.
This step is only for use when utilizing SMTP for email routing for a co-existence scenario. The decision to utilize SMTP verses Connector verses a hybrid (SMTP and Connector) co-existence is based solely on business need. Please review each option to see what benefits (and drawbacks) each scenario has that may impact the environment and migration process.