Remco PST files CAN be and have been larger. In the old days, even though Microsoft definitely recommended against allowing them to get larger than 2GB (because there were no repair tools) we would regularly see people with 2-4GB PST files. This is definitely an OUTLOOK version dependent problem. And Microsoft doesn't make it easy either: - https://support.microsoft.com/en-us/help/982577/the-file-size-limits-of-.pst-and-.ost-files-are-larger-in-outlook-2010-and-outlook-2013 - https://support.microsoft.com/en-us/help/832925/how-to-configure-the-size-limit-for-both-.pst-and-.ost-files-in-outlook - https://www.msoutlook.info/question/852 This is what happens when people use Outlook as an email filing and archival system. I'm sorry this doesn't confirm or solve the problem, but I did hope it would shine a light on it, and perhaps prompt for more technical details from the OP. Mike
