How to Index and Search EML Email Files? – .Eml Viewer

MailDex Windows software for indexing email and file attachments.

Searching through large quantities of .EML formatted email files is a daunting task. MailDex software for Windows by Encryptomatic LLC makes the job easy. MailDex will build an index you can search. The index will contain the body text, and header information. You can even optionally choose to index files attached to the emails.

Download the MailDex free trial and follow along.

MailDex’s interface is project driven. That just means that you can have multiple MailDex indexing projects. The benefit of this is that you can create separate silo’s of email data. These silos are not mingled. For example, if you were working at a law firm and you were working on multiple cases, you could create a separate project for each case. Later, you can permanently delete an email indexing project without impacting the other cases.

Step one is to create an email project in Maildex.

This is the MailDex software full user interface. It has selectable options on the top, indexing projects on the left. On the right it reads "Getting Started with Maildex". Below that are icons reading: User Guide, Support, Email, Quick Start Videos, Home Page.
In the lower right segment is a list of emails that can be selected and viewed. — MailDex Main Screen

From the left side of the MailDex main screen, click on “New” to create a new project, and give it a name. After clicking OK, your new project will appear on the left side.

Screen image of MailDex New Project box. It says, "New Project. Project Name: "CASE 10282".
"Index Attachments" is checked as an option.
OK. CANCEL. — Create a new project in MailDex

If you hover over the project name, MailDex will show you the status. Of course, we haven’t added any emails yet, so the status is empty.

Screen image of hover text.
It "Project: Case 10282", Files ), Index 0, In Progress: False, Queued: 0, In Error: 0. — MailDex project status

The next step is to add emails to your new project. You can add one eml file, select multiple eml files, or even better, just add an entire Windows folder of .eml email files. There is no limit to the number of eml emails MailDex can index.

Screen image showing the location of the "Add File" and "Add Director" buttons. Text reads, "96,053 emails indexed. — Add Emails to Your Project Using the Add file and Add directory buttons.

MailDex supports more than just .eml emails, though. It can also index MBOX, EMLx, PST, OST, and MSG emails as well.

After adding emails to your project, MailDex automatically indexes them. After a short indexing period (indexing file attachments will take longer), you are ready to search your new email data base.

Screen image showing the location of the Search tab, with selectable icons "Advanced Search" and "Find in Current Message." A Search Box for simple search, and a check box for Regular Expression. — MailDex supports simple email string search and advanced search.

From the MailDex search tab, you can do a “quick search” to find all emails containing a specific string. An advanced search will allow you to set specific search conditions, such as searching between dates, or searching only emails sent between specific email addresses.

MailDex search criteria menu, allowing user to set conditions including search by sender, body, recipients, CC recipients, BCC recipients, delivery time and submit time. More conditions are available if the user scrolls further downl — Set specific email search by time and sender.

For more help or information on getting started indexing Eml emails with MailDex, post your question here! You can also email us with questions, or open a help ticket for full support.