Why Outlook 2011 Export Misses out some particular emails while exporting?

To download emails from Thunderbird to Outlook PST format, follow these steps:

1. Export emails from Thunderbird.
2. Use a third-party tool to convert the exported emails to PST format.
3. Import the PST file into Outlook.

For more tech-related tips, visit DotIt.

• Create PDF files from multiple emails of OST file in batch.
• Selectively Export Mails, Contacts, Calendars, Tasks, Notes, etc to PDF.
• Quickly scan & preview OST file items within software interface.
• Provides support to maintain Page orientation after exporting.
• Adobe Acrobat installation is not required to create PDF files.
• Naming Convention feature can be applied while exporting OST emails
• Allows users to Apply Date Filter while migration of OST to PDF.
• Provides support for exporting with folder hierarchy.
• Add Page Numbers as per required positions along with Date Stamping.
• OST to PDF Converter supports Windows 10 & The software supports Windows 10, 8.1, 8, 7 & other below versionsMS Outlook (32-64 bit)

The simple way to restore .pst files in outlook is

Choose File-> Import and Export…
Choose Export to a file
Choose Personal Folder File (.pst)
Select the Inbox and press Next (we do the Contacts folder later)
Set the file location to D:\My Documents\My Outlook\Backup\export.pst
Press Finish and you’ll be prompted to set properties for the export.pst file
In the Name field type a descriptive name like "Export June 2004" (yeah, I wrote this guide a long time ago but don’t worry; I still keep it up to date!)
Press OK to start the export
To export the Contacts folder as well repeat step 1 to 4 and this time select the Contacts folder
If the save location is not set to the path you’ve set in step 5 browse to it
Press Finish to export the Contact folder
Close Outlook and copy the exported file to your safe location as described in Backup pst-file
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To export the messages from Windows Mail follow these steps:

1. Open the Windows Mail, on the File menu, point to Export, and then click Messages.

2. In the Windows Mail Export Wizard, click Microsoft Exchange, and then click Next.

3. Now, click OK. This will export messages from Windows Mail to Microsoft Outlook or Microsoft Exchange.

4. To specify which files to export, click All or Selected Folders, and then click OK.

5. On the File menu, point to Export, and then click Messages.


Check this link for more information:

http://support.microsoft.com/kb/196347


Good Luck!!!!!!!