giis-ext4 (gET iT i sAY) is a file recovery tool for Ext4 filesystems. Once installed, current files and newly created files can be recovered. It allows users to recover all deleted files, recover files owned by a specific user, and recover files of a specific type, such as text or PNG. It uses ext2fs lib and sqlite.
UnDBX is a tool to extract, recover, and undelete email messages from Outlook Express .dbx files. On first run, all messages are extracted as individual .eml files. Subsequent runs only update the output directory with new messages, and delete old .eml files that correspond to deleted messages in the .dbx file. Corrupted .dbx files (including files larger than 2GB) can be opened in recovery mode, in order to recover messages and partially undelete deleted messages. The success of recovery depends on the type and level of .dbx file corruption.