I experienced that change while overseeing a lengthy series of customer projects with thousands of EML-formatted emails.
It seemed harmless at first. EML files were lightweight, exportable and reasonably easy to archive. But as time went on, I came to the unsettling conclusion that they weren't safe, controllable or future-proof.
This evaluation is based on my own experience of attempting to secure email archives, failing with manual techniques and ultimately using an EML conversion tool to transition to a structured PDF-based storage solution.
The Situation
The true problem didn't appear out of nowhere. It accumulated gradually.
I had folders that included:
• Discussions with clients
• Financial Reports
• Conversations about the project internally
• Private documents, such as contracts and invoices
All are kept as unprocessed EML files.
It was access control, not storage, that unnerved me.
Those files might be opened by anybody who had access to the folder. There was no audit trail, no restriction layer, and no encryption. Even worse, depending on the email client, various computers showed the same EML file in different ways.
At that point, security risk replaced convenience as the primary priority.
One event took it a step further: during a typical system transfer, a shared backup drive holding EML files was duplicated. It was unintentional rather than malevolent. However, it revealed the true fragility of the entire system.
At that point, I came to the conclusion that I could no longer rely on EML format for long-term storage.
Limitations of EML Files From a Security Perspective
The limits became clear as soon as I started doing a thorough analysis of the problem:
1. No Password Protection
Plain email exports are called EML files. No encryption. No password security. There is nothing stopping illegal access.
2. Easy to Manipulate
Sensitive content can be opened, forwarded or even duplicated by anybody with access to the folder.
3. Absence of Standard Formatting
Outlook, Thunderbird and other clients display emails differently. There are problems with trust because of this inconsistency.
4. No Compliance Support
Raw EML files are inadequate for audit or legal requirements since they lack closed formatting and controlled display.
I wasn't searching for "better organization" at this point. I required storage that was stable, secure and under control.
Methods That Fail
I tried managing conversion manually before purchasing any software. My first thought is usually to stay away from additional software unless it's really necessary.
1. Print one email at a time to PDF
This was the most obvious choice.
but soon became impractical.
Problem:
• A rather slow process
• There is no option for bulk conversion
• Improper handling of attachments
• Formatting often shifted or broke
I stopped after a few hundred emails since it was not scalable.
2. Copy and Paste
At first, this seemed sensible.
However, it was nearly instantly unsuccessful.
Issues:
• Email headers (sender, time and subject) were lost.
• The absence of a connection structure
• The formatting started to change.
• Unsuitable for professional or legal use
In essence, it converted structured emails into plain text documents.
3. Email Client Export
Export options were available in a few email programs, although they were few.
Issues:
• Unreliable batch processing
• Inconsistent output across folders
• There is no guarantee that security will improve
• Remains reliant on email software
At this point, I understood that the fundamental problem of security and structure preservation at scale was not being solved manually.
The Solution
I found Softaken EML-to-PDF Converter while looking into more reliable methods. The majority of tools in this area guaranteeing "bulk conversion" while failing with real-world datasets, so I wasn't immediately convinced.
What was notable, though, was the emphasis on: Processing big EML archives in bulk
• Maintaining the structure of emails
• Converting to a PDF format that cannot be edited
• Keeping attachments and metadata
My worries regarding regulated storage and security were directly solved by that combination.
After Conversion
The change became apparent as soon as the move was finished.
• Managing email archives became simpler.
• Files could now be exchanged securely without disclosing unprocessed EML data.
• No longer relying on email software
Why Sensitive data is now safer when stored in the cloud.
• A lower chance of unintentional alteration
The largest shift was psychological rather than technological. I am no longer concerned about someone accessing private correspondence by opening a folder.
Software Licensing
There are several licensing options available for the software:
· Personal License ($29)
· Home License ($49)
· Business license ($99)
· Enterprise License ($299)
The Home License was my choice.
Why I Choose a Home License:
• I had large amount of old emails.
• I required compatibility across several systems.
• I anticipated more conversions and migrations in the future.
• For continuous use, a single machine license would not be sufficient.
Long-term usage was the deciding factor, not features. I didn't want to deal with the same issue in the future.
Thoughts
The problem wasn't that EML files were problematic; rather, it was that they were never intended for controlled sharing or safe long-term preservation.
When email quantities were low and systems were straightforward, they functioned well. However, they are inadequate in actual corporate settings where data sensitivity is important.
Accessibility issues were not the only ones resolved by converting everything to PDF format. It added a degree of security and stability that is just not present in raw EML files.
Without requiring a complex workflow or running the danger of data loss, it helped make that shift feasible.
Evaluation
Total Score: 4.6/5
• Usability: 4.7/5
• Performance: 4.6/5
• Output quality: 4.8/5
• Security Enhancement: 4.9/5
In conclusion
In my experience, using raw EML storage is no longer a safe choice if email data security is even a moderate issue. In addition to increasing accessibility, converting those files to PDF greatly decreased the possibility of unintentional disclosure.
This type of conversion becomes more of a practical necessity than a convenience for anyone managing essential email archives, legal documents or long-term commercial communication histories.
