You can transfer an OST file to Gmail by using SysInspire OST to Gmail Converter software. This software can send all the OST files to your Gmail account and no data is lost during transferring of OST files to your Gmail account and it is transferred with 100% accuracy. This software can transfer OST files to your Gmail account without the installation of MS Outlook into your system. You can preview the contents of the OST file in the side window of the software. You can add single or multiple OST files into the software at a time. In the demo version of the software, you can choose 25 files from each folder to convert and send OST files to your Gmail account.

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