Hello,
Please create a new account with the following steps:
1. create a new account on the exchange server
2. make this account part of domain admin and local administrators group
3. create a mail box account for this user
4. the mailbox should be unique
Please check the technote below for more information:
http://support.veritas.com/docs/256537
5. create a microsoft outlook profile for this user, Verify that you can send and receive mails from this account
6. Verify that this account is not hidden.
Please see the technote below for more information
http://support.veritas.com/docs/243328
7. From exchange system manager give this account "exchange full administrator rights" at site level
8. Now go to Backup Exec-network logon accounts-create a new account
9. when you go to backup-when it asks you to select an account to backup mailboxes please select this account
In addition please see the technotes below for more information:
http://seer.support.veritas.com/docs/242606.htm
http://seer.support.veritas.com/docs/249456.htm
If you have any issues please revert.
Thanks,