Local EML, MBOX and MSG viewer with attachment export
Recover access to exported messages and attachments without signing into an email platform or uploading your archive.
Mail Archive
Choose your inputs, or load the working example to explore the result. Your files stay on this device.
Your inputs
Required fields are marked with an asterisk.
Your result
Review your output, then save it to your device.
Make the next step clear.
Your findings, assumptions and next steps will appear here after you run the check.
Mail Archive · https://mailarchive.kitforma.com/ · KitForma
EML, mboxrd and Outlook MSG
Search sender, subject and body
Real attachment and message exports
Understand the evidence.
Focused guides explain the rules, the edge cases and the checks worth doing before you act.
Open email exports without uploading a mailbox
Choose a supported portable message format.
Read the guide ↗Field guide / 02Extract attachments and understand MIME encoding
Preserve bytes while reading encoded messages.
Read the guide ↗Field guide / 03Review an email archive safely and verify exports
Keep presentation separate from original evidence.
Read the guide ↗Before you start
Does it connect to my mailbox?
No. It reads local exported files only. No Google, Microsoft or Meta approval is needed.
Does it support PST or OST?
No. Export EML or MBOX with a desktop mail client first. This release supports EML, mboxrd-style MBOX and ordinary MSG messages.
Are remote images loaded?
No. The viewer shows plain text and never renders email HTML or fetches image URLs.
Does reconstructed MSG preserve every Outlook field?
No. Available message headers, plain text and ordinary attachments are exported. RTF formatting, embedded MSG objects and proprietary Outlook properties are outside this export format.
Sources & assumptions
Formats, algorithms and supported features are documented below. Check the stated scope and inspect your output before using it.
- MIME message structure ↗
Content types and transfer encodings.
- MIME multipart bodies ↗
Multipart boundaries and media types.
- Encoded email headers ↗
Encoded words in message headers.
- MSG reader ↗
Local Outlook compound-file parsing.
Reviewed 2026-10-17. Read our methodology or report an issue.