Local search engine for Outlook PST files. SQLite FTS5 + pst-extractor (Node). Reads PSTs libpff cannot.

PSTmortem is a Python CLI that exports Microsoft Outlook OST/PST files to Thunderbird mbox or Dovecot Maildir. Designed for very large archives (tested 30 GB+) with low, constant memory. Features folder & date filtering, attachment size limits, resumable Maildir exports, and graceful Ctrl-C.