.MBOX File Extension
The file extension MBOX stands for Mailbox and MBOX is the most common electronic mail format which is used to accumulate and organizing E-Mail messages in a single text file format on a hard drive in which all the massages for each and every mailbox are stored.
The MBOX file identifies the start of each message by the "From" (sometimes "From_") line beginning each one. Taken in conjunction with an empty line, which signifies the end of the previous message, the word "From" at the start of a line indicates to a program the beginning of a new message.
File Description:
Apple Mail 1.x (included with Mac OS X) saved messages in MBOX files and stored them in the User→Library→Mail→Mailboxes folder.
Apple 2.0 and later uses .EMLX format, which separates the messages into individual files so they can be searched by the Spotlight program.
There are several email programs which is used to save their email messages in MBOX format and they are listed below:
|
|
|
Mac OS
Apple Mail 
Microsoft Outlook 2011 
Microsoft Entourage 2008 
Mozilla Thunderbird 
QUALCOMM Eudora
Any text editor
Windows
Linux
