MBOX File Extension
A Plain Text File!
A Brief Information about what is .mbox File Extension?
MBOX extension is a plain text file which holds the email messages as 7-bit ASCII text and the attachments are stored in encoded format.
Generally MBOX file is used for storing or organizing messages in a single text file which also stands for MailBox.
The starting of each message is specified by "From" tracked by a white space character and end of each message is specified with a blank line.
MBOX Family contains four Common Variants
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mboxo:It is main Mbox format which uses the constant string "???@???" in place of sender's e-mail address.
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mboxrd:It is variation of mboxo mailbox format.
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mboxcl:It is the mailbox format used by Unix 'System V' mailboxes.
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mboxcl2:"mboxcl2" mailbox format is similar to mboxcl.
Application Category
Database Files
MIME Type
text/x-mailbox
Technical Specifications
File Signature Details
00 0D BB A0
Default Storage Locations
Default location is /User/Library/Mail/Mailboxes/directory, but varies by client:
- Apple Mail: /User/Library/Mail/[account]/INBOX.mbox/Messages/
- Mozilla Thunderbird: C:\Users\\AppData\Roaming\Thunderbird\Profiles\
- Entourage 2008: C/Users/user_name/Documents/Microsoft User Data/Office 2008 Identities/Main Identity
- The Bat: C:\Users\\App Data\Roaming\The Bat\Mail\profile folder
- PocoMail: C:\Documents and Settings\Administrator\Application Data\PocoMail\Mail.
- Mulberry: C:\Documents and Settings\Administrator\Application Data\Cyrusoft\Mulberry\Mailboxes
- Evolution Mail: C:\Documents and Settings\Administrator\.evolution\mail'
- SeaMonkey: C:\Documents and settings\Administrator\ApplicationData\Mozilla\SeaMonkey\Profiles\nz8lvw59.default\Mail.
- Netscape: C:\Documents and settings\Administrator\ApplicationData\Mozilla\Profiles\default\2yv6fh2e.slt\Mail.
- Opera Mail: C:\Documents and Settings\Administrator\Local Settings\Application Data\Opera\Opera\mail\store\account1
Applications Supported
Supported by 20+ desktop mail clients including:
How to Open and View MBOX file
The MBOX or MBOXO or MBOXRD are types of Mail Box files that are used by various open source softwares. Hence, this file extension can be opened using all these applications that generate MBOX file. For Example, Thunderbird, SeaMonkey, Evolution, SeaMonkey and more.