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EML (Electronic Mail) is the standard file format for individual email messages. Each .eml file stores the message header (sender, recipient, subject, date), body text (plain text and/or HTML), and MIME-encoded attachments. EML files are created by Outlook, Thunderbird, Windows Mail, and most other email clients. To read an EML file, you need a compatible email application or viewer.
TIFF (Tagged Image File Format) is a raster image format widely used in document imaging, scanning, and archiving. TIFF supports multi-page documents in a single file, lossless compression, and high resolution. TIFF files are accepted by virtually every document management system, court e-filing platform, and enterprise imaging workflow. You can open a TIFF in any image viewer without specialized software.
The practical difference: EML is tied to email software; TIFF is universally accessible. Converting EML to TIFF produces a fixed, non-editable image of the email that can be filed, printed, or submitted as evidence without requiring the recipient to have an email client.
| Feature | EML | TIFF |
|---|---|---|
| Content type | Email message + attachments | Raster image (multi-page) |
| Viewer required | Email client or EML viewer | Any image viewer |
| Editability | Editable (body text, headers) | Non-editable (pixel-based) |
| Multi-page support | N/A (single message) | Yes (pages within one file) |
| Legal admissibility | Metadata can be altered | Fixed visual snapshot |
| DMS compatibility | Limited | Universal |
Each TIFF output captures the email body and optionally the attachments as separate pages within one file. Batch conversion handles hundreds of emails in minutes.
Total Mail Converter includes a command-line interface for automated workflows. Example:
MailConverter.exe C:\Emails\message.eml C:\Output\message.tiff -cTIFF
Process an entire folder of EML files:
MailConverter.exe C:\Emails\*.eml C:\Output\ -cTIFF -DPI:300 -Compression:LZW
Add this to a .bat file or Windows Task Scheduler to convert incoming emails to TIFF automatically — useful for legal departments, compliance teams, and document management pipelines.
Select hundreds of EML files and convert them all to TIFF in one run. The converter processes large queues of emails quickly — an entire mailbox folder takes minutes, not hours.
Choose how attachments are processed: embed them as additional pages in the TIFF, save them as separate files, or skip them entirely. Attached images, PDFs, and documents are rendered into the TIFF output.
Add page numbers, dates, file names, or custom text to every page. Bates numbering is essential for legal discovery — each page gets a sequential identifier that makes referencing specific pages in court filings straightforward.
Choose between LZW (lossless, good for text), CCITT Group 4 (monochrome fax standard), or no compression. Control the DPI (150, 200, 300, 600) to balance image quality against file size.
All processing happens on your local machine. Attorney-client communications, HR records, financial correspondence — none of it leaves your PC. No internet connection required.
Besides TIFF, Total Mail Converter converts EML to PDF, DOC, HTML, TXT, JPEG, PST, and more. One tool covers all your email conversion needs.
| Feature | Online Tools | Total Mail Converter |
|---|---|---|
| File size limit | 5–25 MB | No limit |
| Batch conversion | One file at a time | Unlimited |
| Privacy | Emails uploaded to cloud | 100% offline |
| Attachment handling | Ignored or basic | Full control (embed, separate, skip) |
| Bates numbering | Not available | Built-in |
| TIFF compression | No control | LZW, CCITT, uncompressed |
| Automation | Manual only | Built-in command line |
| Pricing | Subscription or ads | One-time $59.90 |
(includes 30 day FREE trial)
(only $59.90)
"We process thousands of EML files per case for e-discovery. Total Mail Converter handles the batch TIFF conversion reliably, and the Bates numbering feature saves us from using a separate tool. CCITT Group 4 compression keeps file sizes manageable for our document review platform."
Jonathan Reeves Litigation Support Specialist
"Our document management system only accepts TIFF input for email records. This tool converts EML files exactly as we need them: multi-page, 300 DPI, with attachments embedded as extra pages. The command line integration lets us automate the entire archive workflow."
Sandra Hoffman Records Manager
"Good tool for converting email correspondence to image format for regulatory submission. The header and footer options are useful for adding case references to each page. Conversion is fast even with large attachments. Would be nice to have PDF/A output alongside TIFF, but for our TIFF-only workflow it does the job well."
Marcus Chen Compliance Officer
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