Proxy address creation for a user account

By default, the Exchange server assigns a primary Simple Mail Transfer Protocol (SMTP) proxy address to a user account when a mailbox is created.

To create multiple proxy addresses for a user account, specify the Proxy Addresses attribute on the Active Directory account form. A primary proxy address for each type must be added before adding additional proxy addresses of the same type. The primary proxy address of an SMTP address type cannot be deleted.

Note: Always specify a primary proxy address in uppercase and a secondary proxy address in lowercase.

For example, a user account Thomas exists on the Active Directory with the following values in the Active Directory account form.

User Id Thomas
Proxy Addresses SMTP:Thomas@ibm.com
smtp:Thomas2@ibm.com
In this example, SMTP:Thomas@ibm.com is the primary SMTP proxy address, and smtp:Thomas2@ibm.com is the secondary SMTP proxy address.
Note: To create an X400 proxy address for a user account, you must specify the primary SMTP proxy address.