Email

Email viewer

The Email viewer module opens messages saved by any client — EML, Apple Mail EMLX and Outlook MSG, recognised from their bytes — in an isolated process, without executing anything and without contacting any server. It shows the message, all headers, the MIME structure and the full attachment tree with hashes, and saves it in the other formats without losing the signature.

What it does

What the Email viewer module does

Three formats, one engine

EML, EMLX and MSG are brought back to the same RFC 5322 message: the same readings and checks apply to all. Outlook's compressed RTF body and winmail.dat (TNEF) are decoded too.

Safe preview

HTML is sanitised: no scripts, inert forms, non-clickable links (the target shows on hover). Remote images are not loaded: they load only on request, after a warning explaining why contacting those servers reveals that the message was opened.

Rendered, text, HTML source

In a window of its own: the message as it appears, the plain text and the HTML source, next to the headers, attachments and MIME structure.

Attachment tree

Attached messages, winmail.dat opened into its attachments, MD5/SHA-1/SHA-256 hashes and the real type recognised from the bytes against the declared type. Save one attachment or all, or open it directly in another Probatio module.

Save as EML, EMLX or MSG

The same format is an identical copy; nothing is lost between EML and EMLX; a signed message becomes an MSG in the form Outlook uses to keep the S/MIME envelope, so the signature stays verifiable. You can also save the headers alone.

No action on a changed file

Every operation — save, conversion, attachment — carries the hash of what you saw: if the file on disk has changed in the meantime, the operation refuses.

PDF report

Summary, headers, structure and attachments of the message with their hashes.

Step by step

How it works

  1. Drop an .eml, .emlx or .msg message: the format is recognised from its content.
  2. Read the summary and the attachments; press View to open the message in a window of its own.
  3. Save the attachments, open them in another module or save the message in another format.
FAQ

Frequently asked questions

How do I open an .msg file without Outlook?
Drop it into the Email viewer: Probatio reads the MSG format directly, rebuilds the message and shows headers, text and attachments. You can save it as EML or EMLX.
Is opening a suspicious email with Probatio safe?
The message is read in a separate process, the HTML is sanitised, links don't open and remote images aren't loaded without your consent. No sandbox makes an attachment harmless: if you open it with another program, what that program does applies.
Do I lose the signature converting a signed email to MSG?
No: Probatio saves the signed message in the form Outlook uses to keep the S/MIME envelope, and the signature stays verifiable — a PEC too.