Hello All,
I am looking for some advise regarding an issue I am experiencing. First, I would explain the environment:
I have 3 forest in my production environment:
1. Forest 1 having all user accounts (let's say it Source Domain i.e. ADSource.Local) with a UPN defined as "mail.com".
2. Forest 2 is hosting exchange services (let's say it Resource Domain i.e. Resource.Local). All the users ADSource.Local have linked mailboxes in the Resource.Local. ; all the users are able to connect their mailboxes through OWA & Outlook using their Email IDs in a format user"at"mail.com & that's working fine. User Logon Name in ADSource.Local and Email IDs in Resource.Local are same and used to access OWA & Outlook but the samaccountname is different that is used to logon the system.
3. Now, I have to migrate the user from ADSource to Forest 3 (let's say it Target Domain i.e. ADTarget.Local).
I created two-way trust b/w the forests used ADMT with PES (Password Export Server) & SID History to migrate Users, Computers and finally linked the mailboxes of these users using commandset-mailbox {MailboxAlias} -LinkedDomainController {targetUserForestDomainControler} -LinkedMasterAccount {NewAccountToLinkTheMailboxTo} -LinkedCredential:(get-credential {targetCredential}).
After migration, migrated users are able to logon to the ADTarget.Local with all the system permissions and accesses as well except for OWA & Outlook. While I tried to connect OWA withDomain\UserName it allow me to access the mailbox whereas neither Outlook nor OWA not connected with the Email ID user"at"mail.com, that was working fine before the migration. I required to connect OWA & Outlook with the Email ID
Note that, in Exchange OWA authentication is set on Form-based authentication with Domain\Username format.
This issue made me crazy as I don't know what I miss.
Appreciate a solution for this.
Regards,
M. Faisal Sadiq