MBOX files are widely used by email clients such as Mozilla Thunderbird, Apple Mail, Eudora, and Entourage. The MBOX is a good format for storage but not for sharing, publishing, archiving and legal documentation reasons. This is where PDF becomes a better choice.

Microsoft Outlook serves as the backbone of corporate communication, yet it frequently suffers from severe data bloating due to duplicated emails, repetitive attachments, redundant calendar events, and recurring contacts.

MBOX is a popular format for storing emails and is used by email clients such as Mozilla Thunderbird, Apple Mail, Eudora, Seamonkey, and Opera Mail.

Microsoft Outlook is a popular software solution that handles email, contacts, calendars, tasks, and other vital communication data. Usually, all this information is kept in PST (Personal Storage Table) files.