Import PST to Outlook Web with Emails, Contacts & Calendar
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There is no direct option to import PST to Outlook Web directly like Windows Outlook Classic 2024, 2021, 2019 & 2016. It is troublesome for users with Microsoft Business Basic/ P1 plan or free Outlook.com accounts to access their old Outlook PST as they have only Outlook Web Access in subscription. But there are alternate ways to import PST to Webmail Account i.e. using “Network Upload” option as admin, using “Outlook Desktop – Windows” or specialised external “PST to OWA upload tools” to sync the PST data to your cloud account access via Outlook Online. Having access to your previous emails stored in local PST is crucial and uploading to Outlook Webmail makes it easy.
Why Import PST to Outlook Web App?
There are many reasons why a user may need to upload PST files to OWA such as:
- Access local PST stored with archived data on your computer anywhere using a web browser.
- Upgrading from an older Outlook desktop version, where mailbox data is stored in PST format, to Microsoft 365 Business, Personal, Family, or Enterprise.
- Managing local storage occupied by Outlook PST files while storing them safely on a web-based server.
- Restore Outlook data stored as PST file backup to archive to Outlook Online.
Get a Clear Understanding of PST File Import in Outlook Web App
To import PST to Outlook Web involves uploading the PST data to the mailbox accessed through Outlook Live. Outlook Web App – is simply a webmail client – that enables email sync from exchange mailboxes – be it a user or an admin mailbox, hosted exchange server mailbox or a free Outlook.com account.
You cannot directly upload PST (Personal Storage Table) files, a format by Microsoft for storing mailbox data including email messages, contacts, calendars, tasks, notes, etc., to a local container in OWA because there is no “Local Folder.”
Suitable approaches to upload PST to Outlook Web varied based on the type of account access in Outlook Web.
Choose Suitable Method to Import PST to Outlook Webmail
| Factor | Using Outlook Desktop | Using Network Upload | Using BitRecover Solution |
|---|---|---|---|
| Works with Business Basic and P1 licenses, & Outlook.com accessed via OWA. | No | No | Yes |
| Bulk upload multiple PST to OWA | No | Yes | Yes |
| Admin Access Required | No | Yes | Depend upon Outlook Online account |
| Filter Option | Choose which PST subfolder to be uploaded to Outlook Webmail | Filter by sender/recipient, message type | Filter by sender/recipient, choose selective folder & subfolders & subject keywords. |
All the methods discussed here lets you import complete PST data to Outlook Web Access. Before importing PST files into Outlook Web, make sure you understand the prerequisites, applicable restrictions, and key planning considerations.
Method 1: Using the Desktop to Sync a PST File to Outlook Web
For Business Standard, Enterprise (E3/E5), or Personal / Family users, PST file access to Outlook Web is natively possible as “Outlook Desktop – New/Classic” is included in the plan.
- Open Outlook Classic desktop application on your computer.
- Click on File >> Add Account and configure the account accessed by Outlook Web App.
- Once your Outlook Online account is fully synced to Outlook desktop. Go to File >> Open & Export >> Import/Export.
- Select “Import from another program” option.
- Click Next >> Outlook Data File (.pst).
- Browser the PST from your computer to be added to Outlook Webmail.
- Choose the “Replace duplicates with items imported is selected by default and is recommended.”
- Import items into the same folder in: is selected and your email address is shown – “your Outlook Web” account.
- Click Finish.
Once the task on the status bar is completed you can access the same account on Outlook Web with PST emails, contacts, calendar and other details.
Although the process can be time-consuming and extremely manual when you have multiple large PST files that need to be uploaded to Outlook Web, it is less technical and does not require administrative access to upload PST files to Outlook Web.
Method 2- Import PST to Outlook Web App Using Network Upload
Microsoft Purview Network Upload + AzCopy method lets administrators upload PST files to Microsoft 365 accounts (Exchange Online P2, E3/E5 variants, etc.) accessed via Outlook Web app. The option is not available for end users, free Outlook.com users, Personal or Family plans, and Business Basic licenses and only only applicable at the Global Administrator level – broad administrative control over an organization’s Microsoft 365 services including direct PST upload.
Step 1: Download Azure AzCopy and Copy SAS URL
- Open the protection.office.com in your browser and enter Microsoft 365 credentials.
- Now go to the Security & Compliance Center then choose Data Governance. After this click the Import button.
- Open the Import Wizard and click on New Import task then enter your name.
- Finally tap on Show Network Upload SAS URL and then copy the link.
- Select the Upload option and click on Azure AzCopy.
- This will help you to download the tool and import PST to Outlook Web Access.
- Run the following command to open PST file in Outlook Web App:
- AzCopy.exe/Source:/Destination (URL path created from Show Network Upload SAS URL)/V: (Verbose log file)/Y
Step 2: Generate PST Import Mapping File
Moving the PST file into the Azure location comes next. This is done by generating a CSV user mapping file separate from the PST file. Therefore, these CSV files are meant to be imported to your database and then they will generate import jobs to import PST to Outlook Online.
- After the file CSV is made, its validation comes.
- In the Data Import Wizard make sure you check “File Upload Complete” and “Map File Accessible”.
- Now begin to upload the CSV file, and then select “Validate CSV file” as the option.
- O365 will start analyzing the data, letting users style filters before the PST file is imported.
- Finally, select “Import Job” to import PST to OWA.
- In case you want to import the full data then select “No, don’t bring all the data in”
- Done! And then, the PST file is imported into Office 365 according to the process given above. To access the file, users can use Outlook Web Access.
Limitations of Manual Approach to Import PST to Outlook Online:
- Not for 20GB or bigger PST files that can’t be imported to OWA.
- The manual method is slow, redundant and can take hours to accomplish a single task.
- Technically, it’s a process that requires technological know-how, and it’s difficult for non-technical users.
- One bad step may cause issues when importing PST data into OWA.
BitRecover Tool to Directly Import PST Files to Outlook Web App
BitRecover PST Converter is a reliable solution to bulk import large PST files directly to Outlook Web Access (to any account configured) in case – New Outlook won’t let you add the account and Classic Outlook throws an error when I try to open it with all the data fully preserved and security of Microsoft Graph API. Download the free version to import 25 PST emails to Outlook Web per folder.
Steps to Import PST to Outlook Web Access with Direct Tool
- Simple download and install this PST to Outlook Web App migrator tool.
- Choose dual options to select PST files or folders and add them into the software to import PST to Outlook Web App.Software will automatically show you all the folders available in your PST file, check the boxes to select the one you want to import.
- For the next step, open the list of saving options and select Outlook.com (Outlook Web App).
- Type your address connected in the Outlook Web App.
- Connect with OAuth.
- Lastly hit the Convert button and easily import PST to Outlook Web App.
Why is BitRecover the Best Way to Get PST into Outlook Webmail?
- No size cap or pricing variation based on size on PST file import to Outlook Web – most suitable for multiple PST file or folder upload to Outlook Web – with mailbox mapping option.
- Migrate PST data to any target user email address or mailbox GUID – free Outlook.com account, shared mailbox, admin mailbox, in palace archive mailbox. You will only need a Global admin account in case of upload to multiple user addresses. It gives you liberty to upload PST data to Outlook Webmail on a user and at an admin level.
- Keep all data of a PST file intact including emails, contacts & calendar – users may sometimes have a smaller mailbox size – by 1-2 MB but that can be due to empty folders not being replicated option checked.
- Recovery Mode lets you fix corrupted PST when importing to Outlook Web.
- Filtered PST data upload to Outlook Web for organised mailbox – based on date range, sender & recipient addresses, subject keywords and export folders.
- Secure PST Import PST to Outlook Web for multiple users with Microsoft Graph API and impersonation to reduce risk of exposing token to all accounts.
- Audit PST imports to Outlook Web App with detailed saving log and error report to track migrations.
FAQs: Import PST to Outlook Webmail
Q1: Is it possible to directly add PST files to Outlook Web App interface?
No, there is no native option to import PST file to Outlook Webmail as it has no local folder or upload control for .pst files. At max you can use BitRecover professional tool or the native option to upload PST to an email account accessed via OWA and sync mailbox data.
Q2: Why did my PST import finish but not show up in Outlook on the web?
The live mailbox sync may take some time to reflect in the OWA mailbox. Users have also reported that PST files uploaded to OWA via the Network Upload method may not appear due to the incorrect mapping file’s target folder value or target mailbox GUID.
Q3: Is there a size limit for importing PST files to Outlook Webmail?
Yes, the size limitation to upload an Outlook PST file to OWA does exist but it varies based on the type of mailbox:
- Limitation depends upon the Storage Quota of the destination mailbox.
- Microsoft recommends uploading PST files no larger than 20 GB when using the Purview Network Upload method.
- Outlook desktop alternative to import PST files in OWA is also suggested best up to 5-10GB.
To resolve this you can split PST files or use BitRecover professional solution to deal with multiple large PST files at once.
Q4: Can I upload PST files to Outlook Online using the Drive Shipping method?
Although it is technically possible to get PST into Outlook Web App using the Drive Shipping method – it is only for very large-scale imports across many mailboxes and can only work for Microsoft Enterprise Agreement (EA) only with an average cost or $2/GB of data.
Q5: Are there any security risks importing PST to Outlook Web?
No, in most cases, you won’t face any data security risks. However, we always recommend creating a copy of your PST files before you begin converting them to Outlook Web.
Q6: Why Does the PST Import Job Get Stuck in Outlook Web?
If the import is stuck, it’s typically one of three things: The AzCopy SAS URL timed out before the upload was complete (regenerate it and re-upload), the import is being throttled due to file size/volume and just needs more time, or the mapping CSV has an invalid target mailbox. Check the job status on the Purview compliance portal for the specific error before retry.
Conclusion
We provided you 3 different ways to import PST to Outlook Web App. Now it’s up to you which method is suitable for you. For your convenience we would like to inform you that the first method is way too long and can consume so much time. However if you need an instant, reliable and effective solution to import PST in OWA then use the solution recommended by professionals.
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