Microsoft Exchange Server recipients can have multiple addresses of any type. This allows you to support old address naming conventions while moving to new address naming conventions.
For example, a user can have three SMTP addresses. Only one is used when the mailbox sends a message through the Internet Mail Service, but users can use any of the addresses to send mail to the mailbox. The primary address is indicated by uppercase characters; the secondary addresses are indicated by lowercase characters.
You create the primary address as follows:
|Situation||How address is created|
|Specified in the directory import, account list, or migration file.||Matches specified address, as long as it is unique in the directory.|
|Not specified when mailbox or custom recipient is migrated or created.||Automatically generated, based on settings in the Site Addressing object's Site Addressing property page.|
|After recipients are created, settings in the Site Addressing object's Site Addressing property page are changed.||Automatically generated, based on the new settings.|
If primary addresses are automatically generated, you may want a different address format, or you may want recipients to have the same addresses as that of their old mailboxes on the existing system.
The primary address is used for all outbound mail. You can add the old primary address as a secondary address. The primary address for each type cannot be removed, nor can there be more than one primary address of a given type.
To replace the primary address
The addresses in the modified file replace the primary addresses for the recipients.
You create secondary addresses when the recipient is created, by using the Directory Import command, or one at a time, with the Administrator program.
This section explains how to create secondary addresses by using the Directory Import command. Secondary addresses can be added to any existing secondary addresses.
To create a secondary address
The addresses in the modified file add the appropriate addresses to the recipients.
Use the same procedure to change or remove secondary addresses. All existing secondary addresses need to be replaced with the updated list of secondary addresses.
To change or remove secondary addresses