/**
* Plugin Name: All-in-One WP Migration
* Plugin URI: https://servmask.com/
* Description: All-in-One WP Migration makes moving your entire WordPress site simple. Export or import your database, media, plugins, and themes with just a few clicks.
* Author: ServMask
* Author URI: https://servmask.com/
* Version: 7.90
* Text Domain: all-in-one-wp-migration
* Domain Path: /languages
* Network: True
* License: GPLv3
*
* Copyright (C) 2014-2025 ServMask Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
This article will share important information about different file formats regarding the Outlook email client. This article will be much helpful for individuals or organizations that they use Outlook email clients to send and receive email messages as a communication medium.<\/p>\n
Upon configuring your email account in Outlook, you, as a user, create a local copy on your device. This local copy facilitates access to previously synchronized email messages, contacts, tasks, and more, even when you’re offline and not connected to the internet.. A local copy can be in an OST or PST file format, depending on your configuration process.<\/p>\n
This file is created when Cached Exchange Mode is enabled while configuring email accounts in Outlook using IMAP, Outlook.com, Office 365, and Exchange accounts.<\/p>\n
Notes: Even after configuration with IMAP account, Outlook makes a PST file to store the email database in the prior Outlook 2010 version.<\/p>\n
PST is another file format that Microsoft Outlook uses to save users\u2019 mailbox data. This data file type is created when users configure their email account in Outlook and choose the POP\/SMTP standard type.<\/p>\n
Case 1:\u00a0<\/strong>When you want to share your email information or database with another device, Outlook doesn\u2019t support this task. It is possible only with the help of\u00a0Free OST viewer tool<\/a>.<\/p>\n Case 2:\u00a0<\/strong>If for some reason, your Outlook profile is removed from the Exchange server, you cannot access your stored information in the OST file.<\/p>\n Case 3: <\/strong>You cannot recover anciently deleted email items from the Exchange Server.<\/strong>\u00a0You will lose deleted emails or Other Outlook items forever.<\/p>\n Case 4: \u00a0<\/strong>When you reach the maximum storage limit, your OST file becomes inaccessible. You need to back up in PST format to free up space for new email items.<\/p>\n Case 5: <\/strong>Due to unforeseen circumstances, the Exchange Server might crash, causing damage or corruption to the Offline data files. Consequently, you will need to repair the OST file to regain access to previously downloaded items.<\/p>\n Case 1:\u00a0<\/strong>If you have stored the email items in PST format, you can easily send it on another device to\u00a0open and read the PST file in Outlook<\/a>.<\/p>\n Case 2:<\/strong>In case you inadvertently delete any email items from the mailbox, you can readily recover them from the Exchange Server.<\/p>\n Case 3: <\/strong>Deleting or removing the Outlook profile through the Exchange Server doesn’t impact the stored Outlook items.\u00a0<\/strong><\/p>\n Case 4:\u00a0<\/strong>The stored email database in a PST file mailbox does not take space in Exchange Server. So Exchange server works uninterruptedly.\u00a0<\/strong><\/p>\n Case 5:<\/strong> You can easily repair a damaged or corrupted Outlook data file (.pst) by utilizing a third-party OST repair tool or the built-in repair tool within Outlook.<\/p>\n After analyzing both Outlook data file formats, we can easily conclude that the OST file has many disadvantages in saving email information compared to the PST file format. So I recommend you use PST format instead OST file. If you have an OST file, convert OST to PST<\/a>\u00a0file format on an urgent basis to avoid undesired circumstances.<\/p>\n Read more:\u00a0<\/em><\/strong>How to open & import PST file in Outlook?<\/em><\/a><\/p>\n Read also:\u00a0<\/em><\/strong>How to Convert Microsoft .OST to .PST File in Outlook 2019<\/em><\/a>PST files become more useful when<\/strong><\/h3>\n
\u00a0Difference between OST and PST files<\/strong><\/h3>\n
\n
Final verdict<\/strong><\/h3>\n