If you are looking to export exchange 2010 mailbox to pst and convert your EDB file into PST or other (EMLX, EML, MSG and HTML) working file format use SysInspire EDB to PST Converter software. It scans the EDB file finds the corruption and removes the corruption causing errors. With their splitting feature you can convert large EDB Mailbox to PST Outlook with splitting into several smaller.

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To export Exchange 2010 mailbox to PST or Exchange database to PST format, I would recommend you try Exchange Recovery Manager. Using this professional tool, Exchange users can export their mailbox into PST, EML, MSG, Office 365, Live Exchange Server, and Outlook Stores. It supports all the versions of MS Exchange. One can also download a free demo version of this tool to know in detail about its features.