i'm on my way to migrate 100 users from Exchange 2003 to ZCS6.
Currently, users are defined on the follwing basis:
Full name: John SMITH
I use Active Directory for authentication,
When I try to use Exchange Migration tool, it keeps creating or searching for Zimbra accounts as firstname.lastname@example.org, and that is not the correct email principal email address for my user.
Does anybody knows if it's possible to map any Active Directory/Exchange mailbox to any Zimbra account?