EML to HTML failed or not working — what can you do?

What you can do

• Open EML to HTML and retry with a small known-good sample.
• Confirm you are not hitting this limit: .eml only — not Outlook .msg; one file per run.
• Check the FAQ below—encryption, size limits, and format mismatches are the usual causes.
• Still stuck? Try a private window, or read the full guide /#article/eml2html.

FAQ

What limitations should I know?

.eml only — not Outlook .msg; one file per run.

When might it fail?

Runs entirely locally.

What else should I watch for?

Plain-text-only mail becomes a simple <pre> page.

Any other important notes?

Preview is sandboxed; external image URLs still need the network.