Mar 18, 2025 · Though both OST and PST are Outlook data files and store all mailbox items locally, there’s a lot of difference between the two files. In this post, we will compare OST and PST files, …

Oct 6, 2020 · The critical difference between PST and OST files is the contents of a PST are only available in that file. The contents of an OST, however, are also available on the email server and …

Dec 6, 2023 · Learn the difference between OST and PST files in Outlook. Understand uses, benefits, conversion, backup, and when to use OST vs PST.

Mar 24, 2024 · This guide aims to elucidate the differences between OST and PST files, providing users with the knowledge to effectively manage their Outlook data.

Learn the key differences between OST and PST files. Understand their uses, pros and cons, and how to effectively manage your data.

The main difference between the two is that an OST file is used for offline access to data when connected to an Exchange server, while a PST file is used for storing data locally on a user's computer.

Apr 4, 2025 · Offline Access: With .ost files, you can check or tweak emails, calendars, and contacts without Wi-Fi, syncing it all later. .pst files, being local, just work offline naturally—no server needed.

Understand the key differences between OST and PST files in Outlook. Learn their purposes, how they store mailbox data, and when to use each format for backup, recovery, or migration.

Jan 9, 2025 · OST files are used to save data for offline use and are stored in MS Exchange Server. Whereas PST files are personal folder data stored on the client’s hard disk.

Oct 13, 2025 · While OST keeps your mailbox synchronized with the server for seamless offline use, PST provides a flexible way to back up or transfer your data securely. Both play a critical role in …