When an archive store is damaged (typically due to power issues or third party antivirus interaction), the following steps can be used to extract the messages from the problematic archive to your local hard drive and then re-archive the old data into your current installation.Note: unless there is a specific reason you want to create an exported copy of the emails in the archive store, you may prefer to merge the contents of the problematic archive store directly into a new archive store using the merge operation described in this article instead.
Before we begin we need to make will make a few assumptions here:
MailStore is installed at C:\Program Files (x86)\deepinvent\MailStore Server
You have a directory called C:\EML that contains enough space to hold all of your recovered email. The disk must have sufficient free space. Calculate it with the sevenfold size of the archive storage directory [C:\MailArchive\DefaultFileGroup”]. As MailStore compresses and deduplicates messages, this process will create uncompressed message files.
The paths used do not need to be on C:\ and you can use mapped drive letters if needed. Adjust the instructions as needed based on your folder paths:
This should re-archive mail into the new Storage Location created in step #2.