Getting Started
An offline MBOX and EML archive explorer for MIME structure, attachments, threads, dates, participants, duplicates, search, redaction planning, and evidence export.
Support
Mailfossil Support
Help and product information for Mailfossil.
Included Features
- Stream large MBOX files without uploading messages
- Inspect MIME trees, encodings, attachments, and headers
- Reconstruct threads and participant timelines
- Find exact and near-duplicate messages
- Export selected metadata or redaction worksheets
Common Questions
Does the app need an account, subscription, or in-app purchase?
No. It is a one-time paid download with no account, advertising, analytics, subscription, or in-app purchase.
Does it work offline?
Yes. Core features and bundled material work without a developer-operated service.
Where is my information stored?
Your editable workspaces, parameter values, imported records, comparison settings, notes, and export history remain in local app storage.
What are the limits?
Archive inspection aid. Headers can be forged and threading is heuristic; preserve originals and follow legal, privacy, retention, and evidentiary requirements.
Contact
Email support@shadowfetch.com with the app name, device model, iOS version, and a concise description of the issue.