Here is how to get a single importable mailbox out of a complete Plesk server backup.
-
Download the backup from the remote Plesk server to your local machine
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Unarchive the downloaded
backup_*.tar
file -
Look for
backup_domainmail_*.tzst
inside the extracted directory and unarchive it using p7zipStarting from Plesk Obsidian 18.0.40, GZIP compression used in the Plesk backups has been replaced with ZSTD compression to improve performance for backup and restore operations.