Exchange Connection Problems

How to Recreate an Exchange Account and Restore Outlook Data

Chanuka GeekiyanageChanuka Geekiyanage Oct 29, 2026 870 views

Question details

The user needs to recreate a deleted Exchange account in Microsoft 365, sync it with an Android device, and import their previous OST or PST mailbox data.

How to Recreate an Exchange Account and Restore Outlook Data
Product
Microsoft Outlook
Device & OS
Windows, Android
Scenario
Recreating an Exchange email account after temporary removal and restoring previous local mailbox data files.
Observed behavior
The user currently has a temporary personal SMTP account and needs to transition back to a fully synced Exchange environment with their historical data.
Before you start

Verify your specific email hosting provider (such as Microsoft 365 Business or a third-party domain host) and locate the exact file path of your previous PST or OST data files before removing your temporary SMTP account.

Solution 1Recommended

Recreate the Exchange Account and Import PST Data

Set up your Microsoft 365 Exchange account in Outlook and use the Import/Export wizard to restore your emails and folders.

Before adding your new Exchange account, you must remove the temporary SMTP account to prevent conflicts. Once the Exchange account is active, Outlook allows you to import data from a PST file directly into the new mailbox.

1
Remove the temporary account

In Outlook, navigate to File > Account Settings > Account Settings. Select the Email tab, click on the temporary personal SMTP account you wish to delete, and click Remove.

2
Add the Exchange account

Still in the Account Settings window, click New. Enter your Microsoft 365 email address, click Connect, and enter your password to authenticate the Exchange account.

3
Launch the Import/Export tool

Go to File > Open & Export > Import/Export. Select 'Import from another program or file' from the list and click Next.

4
Import the PST file

Select 'Outlook Data File (.pst)' and click Next. Click Browse to locate your backup PST file, select 'Import items into the same folder in', choose your newly created Exchange account from the dropdown, and click Finish.

Recreate the Exchange Account and Import PST Data
OST File Compatibility: Outlook cannot natively import an orphaned OST file directly into a new account. If you only have an OST file, you may need a third-party OST-to-PST conversion tool to extract your data.
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  1. 1. Download the software: Visit the official WPS Office website and download the free installation package for your operating system.
  2. 2. Install and launch: Run the installer and follow the on-screen instructions. Once installed, launch WPS Office to access Writer, Spreadsheets, and Presentation.
  3. 3. Open email attachments: Save document attachments from your newly configured Exchange email and open them directly in WPS Office without formatting loss.
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Frequently Asked Questions

Can I convert an OST file to a PST file to restore my data?

Yes, but Outlook natively only exports to PST when connected to the original active Exchange account. If the Exchange account was deleted, the OST file becomes orphaned, and you will need a third-party OST to PST conversion tool to recover your data.

Why does my Gmail account only sync emails and not calendars in Outlook?

Gmail standardly connects to Outlook via the IMAP protocol, which only supports email synchronization. To sync calendars and contacts directly, you need an Exchange-based account (like Microsoft 365 or Outlook.com) or a specialized sync tool.

What is the difference between IMAP and Exchange?

IMAP is a basic email protocol designed solely to sync messages across devices. Exchange is a comprehensive mail server protocol that synchronizes emails, calendars, contacts, and tasks seamlessly across all connected devices and clients.