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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

.MBOX File Extension

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E-mail Mailbox File Icon
File Type
This file is saved in a plain text format.
Therefore, you can view the contents of the file in a text editor.
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E-mail Mailbox File
DeveloperN/A
Popularity
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CategoryText Files
File Format Description

Email storage format used for organizing email messages in a single text file; saves messages in a concatenated format in which each message is stored after another, starting with the "From" header; originally used by Unix hosts but now supported by other email applications, including Apple Mail.

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.

Program(s) that open .MBOX files
Updated 10/14/2014