Email E-Discovery

Trust the Same E-discovery Software Used by Ernst & Young, Deloitte & NASA

Breaking News: Aid4Mail 5 “Early Access” now available!

Rewritten from the ground up with a new UI and up to 6x faster, powerful filtering with Gmail/O365 search operators, integrated Python scripting, simplified licensing, and lots more. Don’t miss out on our 20% Early Access discount!

For legal investigations and compliance, it’s critical that you have e-discovery software that’s fast, accurate and easy to use.

Perhaps you already have your favorite e-discovery tools, and you’re happy with the way they handle most types of documents. But let me ask you this…

Do they handle email to your standards? Can they manage large amounts of such data without demanding extra time and energy on your part?

Aid4Mail is the email e-discovery tool with the expertise you need. Whether you use it standalone or as part of your workflow with other e-discovery tools, Aid4Mail will complete its job accurately and fast.

You may not know this, but several reputable e-discovery solutions integrate Aid4Mail’s conversion engine to seamlessly process email stores. Yes, our software really is that good!

Aid4Mail can save time, reduce email storage, and give you the accurate results you need for e-discovery and compliance. If that’s what you need, keep reading. I’ll explain how Aid4Mail can help you get the results you need when processing email data.

What Can You Expect With Aid4Mail?

Here are some of the benefits you’ll get with Aid4Mail:

  • Easy-to-learn interface and context-sensitive help to make your job easier
  • Fast and reliable email processing engine and de-duping options that save time
  • Accurate, dependable results that can’t be matched by competitor products
  • Powerful search features that return relevant information quickly
  • More than 40 mail client programs and mailbox formats supported

See the Aid4Mail Difference Yourself

When accuracy matters, you need a reliable, flexible solution that gives you the best possible results.

While no e-discovery product is perfect, email processing with Aid4Mail consistently produces more accurate results than any of its closest competitors.

When handling mail from Qualcomm Eudora, Microsoft Outlook, Exchange, PST and MSG files, no other software rebuilds mail back to the MIME format as well as Aid4Mail.

Here’s why…

When programs like Outlook and Eudora receive an email, they alter and split it prior to saving in the mail store. Traditional e-discovery tools are often incapable of correctly putting the pieces back together. As a result, collected data is incomplete and searches miss relevant chunks of data.

Aid4Mail’s smart conversion engine actually rebuilds emails, producing a format that is as faithful as possible to the original RFC message.

  • Original metadata like SMTP header fields are recovered
  • Status information and dates are restored
  • Attachments and embedded contents are copied back into the email
  From: =?UTF-8?Q?"Bill Caff=c3=a9" <>?=
  To: =?UTF-8?Q?"St=c3=a9phane Fran=c3=a7ois" <>?=
  cc: =?UTF-8?Q?"'Lisa Gruy=c3=a8re'" <>?=
  cc: "John Fire" <>
  cc: "Tim Sand" <>
  Priority: Low
  X-Priority: 5
  X-Mozilla-Status: 0001
  Subject: Poem by Charles Baudelaire
  MIME-Version: 1.0
  Message-ID: <001901cbcf87$707c25b0$51747110$>
  Date: Fri, 18 Feb 2011 17:18:13 0100
  Content-Type: multipart/alternative;boundary="Next_Item:_(A3CB49KFSA19)/1"
Sample header poorly restored by competing eDiscovery tool
  Return-path: <>
  Delivery-date: Fri, 18 Feb 2011 11:18:13 -0500
  Received: from ([]:17353 helo=PrecisionT3500)
    by with esmtpa (Exim 4.69)
    (envelope-from <>)
    id 1PqT25-00058l-7Z; Fri, 18 Feb 2011 11:18:13 -0500
  From: =?utf-8?Q?Bill_Caff=C3=A9?= <>
  To: =?utf-8?Q?St=C3=A9phane_Fran=C3=A7ois?= <>
  Cc: =?utf-8?Q?'Lisa_Gruy=C3=A8re'?= <>,
    "John Fire" <>,
    "Tim Sand" <>
  Subject: Poem by Charles Baudelaire
  Date: Fri, 18 Feb 2011 17:18:08 +0100
  Organization: Fookes Software
  Message-ID: <001901cbcf87$707c25b0$51747110$>
  MIME-Version: 1.0
  Content-Type: text/plain;
  Content-Transfer-Encoding: quoted-printable
  X-Priority: 5 (Lowest)
  X-MSMail-Priority: Low
  X-Mailer: Microsoft Outlook 14.0
  Importance: Low
  Thread-Index: AcvPhydgtD/Fiez1TJSn19MfhrGhJw==
  Content-Language: en-us
  Status: RO
  X-Folder: Inbox
Header metadata fully restored by Aid4Mail

Save Valuable Time With Fast, Reliable Processing

Aid4Mail is Optimized for Speed

We’re perfectionists at Fookes Software, so we’ve put a lot of effort into optimizing Aid4Mail for speed. Here are some of the results from our in-house tests(*):

Conversion Email count Duration Emails/Min.
PST to IMAP (5.6 GB) 500,000 3.5 hours 2,436
MSG to PST (14.2 GB) 513,000 3.5 hours 2,443
mbox to PST (8.5 GB) 390,000 34 minutes 11,700
Conversion Email count Duration Data/Min.
PST to IMAP (3 GB) 8,700 15 minutes 192 MB

(*) The above tests were performed on a 4-year old PC with a Quad-Core Intel Xeon processor under the 64-bit edition of Windows 7 and the 32-bit edition of Outlook 2010. IMAP was managed by hMailServer 5.3.3 installed locally.

Convert Accounts 5x Faster Than Ever Before*

Process concurrent mail accounts with Aid4Mail Console Launcher

Do you need to convert mail from multiple user accounts? Our new, user-friendly utility, Aid4Mail Console Launcher is included with your purchase of Aid4Mail Service and is an option for Aid4Mail Forensic.

  • Speed up your conversion by 500% by concurrently processing accounts from a single CSV file
  • Schedule large conversions for the weekend or in office down-time
  • Get key progress information by email for total peace of mind

* Comparison between a single 186MB MBOX to EML conversion, and 12 concurrent 186MB MBOX to EML conversions. This test was performed on a 64-bit Windows 10 PC with 8GB RAM and an Intel Core i5-6500 CPU at 3.2 GHz.

The Aid4Mail Console Launcher is a new utility to assist with concurrently processing and converting multiple mailbox files and email accounts.

Working alongside the Console (CLI) version of Aid4Mail, the Console Launcher manages, schedules and monitors your email processing tasks.

Included with all purchases of Aid4Mail Service, and as an additional option with Aid4Mail Forensic, the Console Launcher offers the following benefits:

Process multiple accounts simultaneously from one CSV file

Simply fill out the CSV template provided with your conversion and filter settings and user details. Then open and run your CSV file in the Console Launcher.

You can even use multiple source and target locations, all in one session.

Easily schedule your email projects

Schedule your email processing tasks over the weekend, or in the evenings. Increase productivity by leaving large conversions running overnight. Then come back in the morning to see the results.

Get Email Progress Notifications

Opt-in to receive progress notifications by email. You’ll be notified if an account fails, and when all mail has been successfully processed.

A Wide Range of Inputs and Outputs

Variety of export options for litigation and compliance
  • Export messages to PDF or HTML to facilitate file sharing with clients and legal teams.
  • Create PDF/A-1a (Level A Conformance) files which are being adopted by federal courts in the U.S. as the standard format for electronic filing (CM/ECF systems).

If you need to analyze or process mail further using other tools, Aid4Mail can export messages to:

  • Standard Outlook PST files
  • Mbox (formatted for Windows, Mac, or UNIX/Linux)
  • Individual EML and MSG message files
  • CSV (supported by Microsoft Excel and most databases)
  • XML
  • And more.

Custom output formats can also be created with Aid4Mail’s scripting capabilities.

For large volumes of email, Aid4Mail can archive messages in a non-proprietary format, stored in highly compressed ZIP files that can easily be opened in Windows Explorer.

The decrease in file size can be significant, simplifying data storage and sharing. Email attachments and embedded contents (such as images) are readily accessible and can be extracted from the ZIP archive without using any special tools.

Easily de-dupe, search, filter and analyze

De-dupe feature reduces data overload

Duplicate emails can significantly increase the amount of data that you must sort through. That’s why Aid4Mail offers powerful de-duping options to minimize the volume of data you need to analyze.

It offers options to remove email duplicates at the folder level, across all folders in a processing batch, or even across processing sessions.

Powerful search capabilities give quicker results

Aid4Mail integrates a powerful search engine that can analyze terabytes of email files and produce relevant records quickly and easily.

The search function supports reusable word lists, logical operators and wildcards. Power users can even use regular expressions to further refine the data culling process.

Script engine makes email processing more customizable

Aid4Mail also includes a scripting engine designed especially for processing mail data. It can be used for email filtering, data extraction, and message analysis. The script syntax gives easy access to email header metadata fields, as well as any information stored in the message body.

Here’s What our Users Had to Say About Aid4Mail

“Aid4Mail exceeds our expectations on the speed in which it can convert data. It can convert larger amounts of data in no time at all. I would say it’s at least twice as fast as the rest of our tools”
– Jon Hanna, ESI Manager - Advanced Discovery, USA          [ Read our Advanced Discovery case study ]
“I often recommend my clients utilize Aid4Mail to assist in the conversion, search, and export of emails to aid in their eDiscovery cost containment strategies. Aid4Mail impressively allows flexibility in handling the myriad email formats found on modern computers, and is one of my must-have tools.”
– Richard D Lutkus​​​ - Partner - Seyfarth Shaw LLP​​​​​​, UK
“I work for a lawfirm and we used your product to convert a MBOX file to PST. This software worked brilliantly, it even fixed corruption that existed when we attempted to do it manually or with other software. Thank you for that.”
– Gregory Kerr, Lubin Olson & Niewiadomski LLP, USA

Try Aid4Mail Today

Take advantage of our free trial to see how Aid4Mail could work for you.

  • No credit cards
  • No obligations
  • Process unlimited emails
  • Test for as long as you like
Register for your free trial

Ready to Buy Now? It’s Quick and Easy

If you work in the Public Sector and need to process an unlimited amount of end-user email then you need to purchase Aid4Mail Forensic. If you work in the private sector, Aid4Mail Forensic can only be used to process internal company mail. The Aid4Mail Service license allows private sector users to process an unlimited amount of email from both internal company and external client mail data. You will need to purchase 1 license per . See our EULA for the details. You can specify the number of licenses on the next screen.

Aid4Mail Forensic
Primarily for Public Sector

  •  Console + Launcher: optional
    Private Sector:
     Limited to internal mail
    Public Sector:
     Unlimited end-users mail
     USB flash drive option
  •  One-Year License
     50% discount on renewal
  •  Supports MS Exchange
     Filter mail by date/keywords
     Process/restore unpurged mail
  •  Also converts to PDF/A
     Offline license activation

Aid4Mail Service
Primarily for Private Sector

  •  Console + Launcher: included
     Unlimited end-users mail
     USB flash drive option
  •  One-Year License
     50% discount on renewal
  •  Supports MS Exchange
     Filter mail by date/keywords
     Process/restore unpurged mail
  •  Also converts to PDF/A
     Offline license activation

Double-check the system requirements here…

  • Operating System : Aid4Mail runs under Windows 10, 8, 7, Vista, XP, Server 2019, 2016, 2012, 2008 and 2003 or Linux in conjunction with Wine. Both Windows 32-bit and 64-bit are supported.
    Windows 2000 / NT4 / ME / 98 / 95 should work but are not officially supported.
  • Internet : Online license activation, validation, and re-activation require an internet connection (offline activation option available with Aid4Mail eDiscovery editions).
  • Hardware Requirements : 64 MB of RAM, 12 MB disk space. Pentium (or compatible) processor.


Aid4Mail supports most commonly used mail formats and webmail services.

To see a full list of the formats Aid4Mail supports, click here.