Using one PST-file i.e. receiving mail to same inbox:
When you create new accounts, select
manual configuration:
Add account information, select
Deliver new messages to existing Outlook Data File:
So, here's what you could try:
- Backup all PST-files to another location
- Remove all accounts except "master" account and its PST
- Import mail from deleted accounts (from PST backups you made)
- Add deleted accounts back as described above, using master account's PST
Kari