Hi @Cengiz Menteşe ,
From the image you shared, seems like the mails inside the PST files were received years ago. If your primary mailbox is running in Exchange cached mode, it's likely that the moved mails are not visible due to the cached mode settings.
You can switch to Online mode or move the slider under Offline Settings to the end so that all mails can be downloaded offline. Then you can perform a search using some keywords to see if the moved mails can be found.
- Click File > Account Settings > Account Settings.
- Select the primary Exchange account, and then click Change.
- Under Offline Settings, move the slider to the desired amount of time. Click Next and then restart Outlook.
By the way, considering that it's a public community, I've just edited your original post by obfuscating the email addresses in the image you shared.
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