File Extension Library

.MBOX File Extension

  • Category: Text Files
  • Format: Text

What are .MBOX files and how to open them?

Can't open .MBOX file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MBOX file.

What is a .MBOX file extension?

.MBOX file extension has been classified as Text Files. The format of .MBOX file is Text

.MBOX is E-mail Mailbox File

An MBOX file is a mailbox file saved in an email storage format used for organizing email messages in a single text file. It saves messages in a concatenated format where each message is stored after another, starting with the "From" header. MBOX files were originally used by Unix hosts but are now supported by other email applications, including Apple Mail and Mozilla Thunderbird.

Version 1.x of Apple Mail used MBOX files and stored them in the /User/Library/Mail/Mailboxes/ directory. However, Mail 2.0 and later uses the .EMLX format, which separates the messages into individual files so that they can be searched by Spotlight.

Common MBOX Filenames

INBOX.mbox - The name given to the primary Inbox mail folder in Apple Mail, the default email program for Mac OS X.

List of all softwares that can open the E-mail Mailbox File
Mozilla Thunderbird
CoolUtils Total Thunderbird Converter
Kernel MBOX Viewer
Aryson MBOX to PST Converter
Apple Mail
Microsoft Outlook 2016
Mozilla Thunderbird
Mozilla Thunderbird

How to fix problems with .MBOX files

  1. You need to update the application that you normally use to open .MBOX files. Only the latest version of the software supports the current .MBOX file format
  2. You need to check the .MBOX file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)