Microsoft Outlook maintains email messages in a proprietary format in what type of file?

The correct answer is C. .pst. Microsoft Outlook stores emails, calendar entries, contacts, and tasks in .pst (Personal Storage Table) files. This proprietary binary format is a critical artifact in digital forensics investigations because it contains a complete mailbox history. The .email and .mail…

Submitted by emma.c· Apr 18, 2026Disk Forensics

Question

Options

A.email
B.mail
C.pst
D.doc

How the community answered

(68 responses)

A
3% (2)
B
1% (1)
C
91% (62)
D
4% (3)

Explanation

Microsoft Outlook stores emails, calendar entries, contacts, and tasks in .pst (Personal Storage Table) files. This proprietary binary format is a critical artifact in digital forensics investigations because it contains a complete mailbox history. The .email and .mail extensions are not standard Outlook formats, and .doc is a Microsoft Word document format - none of these are used by Outlook for email storage.

Topics

#Email forensics#PST files#Outlook data#Proprietary file formats

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