How to Convert Thunderbird Emails to .EML files

If you are one of the millions of people who uses the Mozilla Thunderbird email client, there may be times when you want to save an email message outside of Thunderbird as a separate file. This is easily done.

This article will show you two simple ways to save a Thunderbird email message as a .eml file that can be shared separately from your entire inbox. If you’re in a hurry, watch the short-cut video below.

Method 1: Simply drag the email message from the Thunderbird mail list to the Windows desktop. Thunderbird will create a .eml file on your desktop. The email’s subject line will become the name of the file.

Method 2: Right click on the email message in the Thunderbird maillist, and then choose “Save as” and enter a file name.

Right click on Thunderbird email to “Save As” .Eml file.

That’s how easy it is to save a Thunderbird email as a .eml file.

Managing Eml Files Outside of Thunderbird

If you have lots of .eml or .msg email files to manage,  download a free trial of EmlViewer Pro. This Windows email viewer that lets you view, sort, search, print and convert Thunderbird .Eml files to PDF and other formats.

If this has been useful, please post in the comments. Tell us about any other email conversion issues you are having, and we’ll be glad to help.

What Are EML Files?

Screen shot of PstViewer Pro email viewing and PDF software.

Files with the .eml extension are email files that store the content, headers, and pictures included in an email. They can also contain any email attachments, so the file size can be large.

In general, .eml files are created by Microsoft Outlook or other similar email programs when someone receives or saves an email. If someone has sent you a .eml file and you don’t have Outlook on your system, you can still open it through other programs, though.

You can easily open .eml files with Microsoft Outlook Express, Windows Mail, or Mozilla Thunderbird. On a Mac, Apple Mail is always included as a default program and will open .eml files, or the Microsoft program suite includes a version of Outlook that can open .eml files. Eml viewer software programs can process these files if its not desirable to install a full fledged email client application.

Another option for advanced users is to open the .eml files you receive with Internet Explorer, Opera, or another web browser. The compatibility varies depending on the browser software and version you have, the content of the email and so on, but if you’re desperate for another option, this might work. If you can’t figure out how to do this, you can change the file extension from .eml to .mht and it may work. EML and MHT files are very similar, except that MHT files do not have the email header information. For some people, understanding how to change a file extension may be difficult, and it may be impossible if you are operating from a Windows account without Administrator privileges.
While the average .eml file should be accessible through an e-mail application or web browser, if this doesn’t work you could try to email the sender of the .eml file and ask them to forward the original email to you as text instead.
If you have many .EML files that you need to search or process, you can try a .EML file viewer.  PST Viewer Pro is one such viewer that is able to work with many different file types such as .EML, .MSG, .PST, .OST and even .MHT files.  Click here for more information on PST Viewer Pro and to download a free trial.
Review the specification for RFC 2822, Internet Messaging standard. or read “What Is .EML” for more information on .eml documents.