Best Practices for MSG → EML Conversion
2025-09-01 • 4 min read
1) Keep the original headers
For maximum compatibility, ensure Date, From, To, and Message-ID are preserved. This helps clients thread conversations and display accurate timestamps.
2) Preserve attachments and inline content
Inline images should remain referenced with correct Content-ID headers. Attachments should keep their filenames and MIME types intact.
3) Validate the resulting EML
Spot-check by opening the .eml file in Apple Mail or Thunderbird. For Gmail, use “Import mail” rather than drag-and-drop to avoid mis-detected encodings.
4) Use offline conversion for sensitive archives
Our local app runs fully on your device, ideal for compliance-focused workflows where data must not leave your environment.