Tactics of Importing Outlook Express to Thunderbird

Summary: In this article we will discuss some efficient and easy methods to import Outlook Express to Thunderbird and the cause of importing OE in Mozilla Thunderbird. 

In Outlook Express users face many problems like it keeps crashing, run time Error 800ccc03, Error 0x800c0133 while sending and receiving emails, and others. Due to these errors, users can not use or run OE properly and needs to move one email client to another i.e. Mozilla Thunderbird. Because Thunderbird is an Open source email client and gives you multiple benefits like sending and receiving emails, calendars, events and tasks, add-ons feature, etc.

Now, moving from one email client to another is not that easy. For that, you need to know about their file extensions and the locations of downloaded files. So, let me give you a brief intro about that.

OE downloads email folders in DBX i.e. .dbx file extensions like, Inbox.dbx, sent.dbx, and so on. And Thunderbird has MBOX i.e. .mbox file extn. Both are poles apart from each other and neither Outlook Express supports MBOX file nor Thunderbird supports DBX file. 

Location of Outlook Express

  • Open your OE application 
  • Go to Tool >> Option >> Maintenance >> Store folder >> Change / OK / Cancel
  • Click on Folder i.e. Inbox or any other and >> Properties >> General 

Location of Mozilla Thunderbird

  • Open your Thunderbird application
  • Click on Folder >> Properties >> General
  • Tools >> Account Setting >> Server Setting >> Local directory

Cause of Transfer Data from Outlook Express to Thunderbird

As I already told you briefly, there are some errors and problems that appear frequently in Outlook Express. 

  • The top reason is that Microsoft discontinued the Outlook Express application and now no updated version of the same is available. Users used to use OE in Windows XP and older versions but due to no update in the application, it is not fulfilling the needs of the users.
  • Another main reason is Outlook Express did not send and receive emails properly. This is amongst the most asked user queries. 

Users Query: Hey, recently I have started facing a problem with my Outlook Express app. I can not open my email messages. I don’t know why this is happening, and I also tried to run OE in Windows XP but it didn’t work. That’s why I have decided to move my OE to Thunderbird, please tell me the relevant method, so that I can work properly.

Users Query: Today I was trying to send mail to my friend with some attachments but I wasn’t able to send that email (i tried again and again) then I told my friend to send me some emails as I received them but attachments are neither opening nor downloading. It has become really irritating, so now I want to transfer my data from Outlook Express to Thunderbird.

So as you can see users are in such a rush to Move OE to Thunderbird, and looking for a reliable solution.

How To Transfer Outlook Express to Thunderbird

There is no manual method present for transferring OE in Thunderbird because Mozilla Thunderbird doesn’t have the Import option for Outlook Express after the update.

 So you need another tool for importing data from your Outlook Express to Thunderbird file. I suggest you use SysTools DBX to MBOX Converter.

  • Install DBX to MBOX Converter Tool on your system 
  • Add file >> Path (fill location of your DBX file) >> Next
  • Export >> MBOX Export as MBOX
  • Browse (fill location where you want to export your DBX file as MBOX file) >> Export
  • A dialog box appears on your screen – An export process completed successfully.

Why I am Suggesting you SysTools DBX to MBOX converter

This is the best tool because I have used it and found it really useful in many terms. This tool gives you various benefits like:

  • You can convert large DBX files into different file extensions other than MBOX like PST, MSG, EML, etc.
  • Either your Outlook Express is of older version or new, tool supports all version
  • You can transfer a bulk DBX file. 
  • You will have preview mode of DBX file (MIME, HTML, Attachments, and others)


Can I transfer DBX to an MBOX file in a batch?

Yes, you can convert bulk DBX files into MBOX files with attachments in a single process.

Is there any formatting, security, or data loss problem related to the tool?

No, there is no problem with software related to Security & formatting. Your DBX file data is absolutely safe and secure with a message header and folder hierarchy.

Can a non-tech person use the tool?

Yes, you can use the software without any problems even if you are a non-tech user. You just have to follow the steps to easily convert DBX files to MBOX file format.

Can I export attachments linked with a DBX file while transferring DBX to MBOX?

Absolutely yes, in fact, you can preview your DBX files before exporting them into MBOX file format.

Also, read AOL Email stopped working on Outlook

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