Due to a recent customer interaction, the below resource has been expanded and updated.
Now, not only will this workaround respect the value set in the "Automatically update e-mail addresses based on email address policy" checkbox, but it will also work with remote mailboxes as well.
Enhancement Request 110847 has also been created to build this functionality into Active Roles.
Title: HOW TO: Automatically apply Exchange E-mail Address Policies from Exchange in Active Roles
Solution: 62452
URL: support.oneidentity.com/.../62452