Challenges of Importing PST to Office 365 Using Manual Methods
Discover the shortcomings that make the manual method to move PST into O365 unsuitable and advantages of using Kernel Import PST to Office 365.
Where does manual solution fall short?
- Processes that include importing large PST files over 20 or 50 GB in size are vulnerable to process failure during upload.
- The ingestion rate supported by the Microsoft Import Service is limited, which is often around 24 GB for a day. This can result in large imports getting stuck or time out errors.
- Requires administrator access to upload a PST file to Office 365 user account.
- Users will need the Mailbox Import Export Role assigned to import PST files.
- For the Drive Shipping method to import PST, you need to first move the PST files to an external storage (probably a hard disk). This drive is then shipped to the Microsoft facility, which may take several days in import.
- Using the Drive shipping method is quite expensive, which is not suitable for small businesses. The speed of data upload is also quite slow, making the method inefficient for the transfer.
- Corrupted data item or a mailbox item which is over 150 MB, is skipped from the mailbox during the import process.
- The CSV mapping file required for the data import and mapping to Office 365 is susceptible to the syntax errors. If there’re errors in the path or any username, it will terminate the complete process.
How does Kernel Import PST to Office 365 outperform?
- Our tool supports quick data import without any restrictions on the import ingestion rate, than what the manual method has to offer.
- Does not require you to assign any permissions or grant roles to migrate PST files to Office 365 tenant.
- Be it any circumstance, the tool does not skip any mailbox data item or file from the import. There is no restriction on the file size to migrate with our tool.
- No need to download or install Outlook application on your workstation to use the tool to upload PST to Office 365. Simply enter the required credentials and upload the PST file, and you’re ready to migrate.
- The tool maintains complete data security for users, which means all the credentials and data entering the tool is encrypted, safe, and accessible only from your local computer.
- Supports import of oversized PST files, even those over 20 GB, without any hurdles or errors.
- Unlike the Drive shipping method, it does not have any geographical limitations. The tool is accessible to all users sitting anywhere around the world.
- Contrary to manual solutions, no additional cost or charges are implied other than the cost of buying the licensed version of the tool.
Manual PST Import Vs Kernel Import PST to Office 365 Tool
| Aspect | Manual Solutions | Kernel Import PST to Office 365 |
|---|---|---|
| Migrate bulk PSTs | Limited | Fully supported |
| Import speed | Slow and limited | Allows quick import |
| Data filtering | Limited or zero filtering | Include advanced filters |
| Technical expertise | Required | Not required |
| Best suited for | Small scale transfers | Large scale migrations |
| Data accuracy | Limited | 100% accurate transfers |
| Corrupted PST files | Unable to handle | Repair and then import |
| Reporting | No built-in feature | Detailed reporting and logs |
Who should use Kernel Import PST to Office 365?
IT Administrators and Managed Service Providers
IT administrators and MSPs liable to migrate bulk user mailboxes or large PST files securely can use the tool.
Users with Minimal Technical Knowledge
Non-technical users with minimum to zero technical expertise or the users who find the manual process too complex.
Businesses with Corrupted or Legacy Data
Businesses having corrupted PST files or have PST files containing legacy data or who want to fulfil global compliance needs easily.
Top Features of PST to Office 365 Migration Tool
Explore the exclusive and advanced features of the Kernel Import PST to Office 365 tool that make it a go-to solution for every user.
Import PST with two authentication modes
The Import PST file to Office 365 tool supports Basic as well as Modern Authentication to migrate PST to Office 365 in just three easy steps. Use Basic authentication for easy and secure login. However, use Modern authentication to add an additional layer of security to prevent data loss.
Import PST files to Office 365
Free download Import PST files to Office 365 tool that allows you to move PST files to multiple mailboxes in a single attempt. Use login credentials to import PST files to a single user account or use the Global administrator credentials to migrate PST files to multiple mailboxes simultaneously.
Import OST to Microsoft 365
Apart from importing PST files, the software also permits you to import OST to Office 365 mailboxes and Groups. Browse the desired single or multiple files to move the stored mailboxes, retaining the original hierarchy during the OST to Microsoft 365 migration.
Efficient mapping with CSV file
Allow Office 365 Administrators to automate the mapping process with the pre-mapped CSV file. Simply download a blank CSV, input the required source and destination details, and upload it. Eliminates manual selection of each mailbox from the added PSTs to import PST file in Office 365.
Import PST to Exchange Server
With the Import PST files to Office 365 tool, migrate single as well as multiple PST files to the Exchange Server. Highly compatible with all the Exchange server versions, including 2010, 2013, 2016, etc., and supports a smooth PST file import to On-premises, Hosted, or Online Exchange.
Import PST files to Office 365 Archive mailboxes
Allows users and administrators to upload PST to Office 365 Archive mailboxes, Primary mailboxes, and Public folders. Permits you to easily select the destination to avoid transferring the data to unintended users’ mailboxes, create a new folder, and import all data inside it.
Import email along with attachments
Attachments containing crucial business information are transferred with other mailbox data. The Import PST to Office 365 tool simplifies the import of PST emails with attachments, supporting zero data loss. Migrate all Outlook mailbox items, including emails, contacts, calendars, etc.
Run multiple import tasks simultaneously
The software allows you to run multiple import PST file to Office 365 tasks simultaneously to save your time and boost efficiency. Instead of waiting for one task to finish, you can run multiple ones to ensure quicker and more accurate results.
Move contacts and calendars to Office 365
With PST to Office 365 migration tool, it’s easy to move calendars, contacts, and other mailbox folders separately. Simply add the PST file to the tool and follow some simple steps as prompted, which will streamline the process to import Outlook PST contacts to Office 365.
Advanced filtering options
Kernel Import PST to Office 365 tool includes advanced filtering options to import data precisely. Support filters like date range, item type, and exclude deleted items & empty folders. Additionally, migrate the entire hierarchy to a single folder and name it after the source PST file.
Skips previously imported items
Avoid duplicity and confusion by using the Skip Previously Migrated Items option. Select the feature to automatically leave out the mailbox items already migrated in previous data transfers. Permits you to import PST files to Office 365 with relevant data only for 100% accuracy.
Import PST without installing Outlook
No need to install the Outlook application on the system to import PST file to Office 365. The tool allows moving PST to Office 365 without installing the email client (Outlook) while keeping the original folder structure and data intact during this data transmission process.
Save the log report after import
After the completion of a successful PST file import into the Microsoft 365 account, you can save the report in CSV format to thoroughly analyze the whole process. Log report provides insights into the number of folders migrated successfully, their type, and errors (if any).
Advanced compatibility to Outlook and Windows
Import PST to O365 tool works well with all major Outlook versions, including 2021, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98 and 97. It is also highly compatible with Windows 365, 11, 10, 8.1, and Windows Server 2022, 2019, 2016, 2012, 2008 R2, 2008, 2003 R2, 2003 OS.
Preserve folder hierarchy
With the Import PST file to Office 365 tool, the folder hierarchy of the mailboxes within the PST file is preserved during the process. All the data stored within the mailboxes in the PST file remains as it is with no manipulation when you move PST to Office 365.
What data items can be migrated?
An Outlook PST file contains mailbox data involving a lot of components as listed below. You can import these PST file data to Office 365 mailbox.
Each user mailbox in a PST file contains multiple folders, which stores all the data.
- Inbox
- Sent Items
- Deleted Items
- Junk Email
- Calendars
- Contacts
- Drafts
Emails are structured messages, composed of attributes like:
- Email header: include elements like From, To, Cc, Bcc, Subject, flags, etc.
- Attachments: DOC, PDF, & other files, inline images, signatures, business cards, and OLE objects.
- Body: Plain text with HTML and Rich Text format.
Contacts store the address book in Outlook with details of the individual users as well as businesses connected with the mailbox. The tool imports:
- Full name or display name
- Email address
- Contact number
- Physical address
- Organization
Include all the created appointments, meetings, and schedules to import to Office 365. Other data include:
- Attachments: Files, docs, business cards, Zoom or Teams conference links.
- Reminders: Pop up, alerts, emails, or other reminder.
- Appointments: Events, slots, or meetings with the subject, location, date and time.
All the user activities a user performs through the mailbox from emails to scheduled meetings are easily transferred with the PST to Office 365 tool.
- Sent/received messages
- Appointments and task completions
- Office files, such as Word, Excel
Features Comparison | Trial vs Full Version
| Features | Trial Version |
Full Version |
|---|---|---|
| Migrate PST Files to Office 365 | 10 items per folder | |
| Import to Public, Archive, & Mailbox folders in Office 365 | 10 items per folder | |
| CSV Import Feature | ||
| Preview OST/PST Data | ||
| Transfer Contacts & Calendar | ||
| Secure Authentication Modes | ||
| Supports Bulk PST Import | ||
| 24*7 Tech Support & 100% Secure | ||
| Free Download | Upgrade $99 |

I wanted a solution to access emails from multiple old Outlook accounts I own within the Office 365 mailbox. This PST to Office 365 migration solution helped me import emails and other required data into the Microsoft 365 tenant.

When I was using the Kernel Import PST to Office 365 tool, I noted several amazing features this tool is designed with. The smooth import process I executed with this tool is truly commendable and was possible all because of its simple interface. Highly recommended solution.

Recently, I was planning to move my business account data stored in old PST files to Office 365. Due to lack of technical expertise I was facing issues in doing that. Then I found about Kernel Import PST to Office 365 tool and the tool imported all the files very smoothly.

I would simply say that this tool has helped in running an organized and convenient PST to Office 365 migration of mailboxes, which once seemed next to impossible due to lack of appropriate resources.
PST to Office 365 Migration tool FAQs
- Step 1: Download and run Kernel Import PST to Office 365.
- Step 2: Click on +Add and choose the source PST file.
- Step 3: Similarly, add the desired destination Office 365 tenant.
- Step 4: Choose mailbox and map the Source to the Destination.
- Step 5: Apply desired filters and click I am OK, Start Migration.
Repeat the same process to move PST to Office 365 for the migration of bulk files with administrator privileges.
- Slow internet causing import disruptions.
- Import limitations on PST file size.
- Using unsupported/older PST formats.
- Oversized PSTs or large attachments.
- Network failure or bandwidth upload.
- Damaged or corrupted PST files.
- Select mailbox folders to include or exclude in the import.
- Import particular data items for a specific date range.
- Save all the imported PST file data hierarchy to a separate folder.
- Use incremental import to skip previously migrated items.
- Provides a detailed import report after the process completion.
- Home User License- This is suitable for users wanting it for personal use It can be installed on up to 2 computers to import your personal Outlook PST files.
- Corporate License- If you are buying the Software for your organization, this license is the best choice. It can be installed on multiple computers within an organization at a single location.
- Technician License- This is highly suggested if you buy the Software to provide services to other users. It can be installed on various computers at different locations.
Watch Video Tutorial of Kernel Import PST to Office 365
Watch the video tutorial to learn how Kernel Import PST to Office 365 works
Import PST to O365 SoftwarePrerequisites & recommendations
Version: 24.2
Release Date: Feb 2024
License Type: Home, Corporate & Technician
MS Outlook: Office 365 Outlook, 2021, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98 and 97
Hard Disk: 50 MB of disk space
Memory: 128 MB Minimum
Processor: Intel® Pentium Processor compatible (x86, x64) or equivalent
Operating System: Windows 365, 11, 10, 8.1, and older versions Windows Server 2022, 2019, 2016, 2012, 2008 R2, 2008, 2003 R2, 2003 OS
What customers say about Import PST to Office 365 Tool
A consistently reliable solution for PST to Office 365 migration! Kernel's import tool proves itself as a dependable choice, ensuring trustworthy and efficient results every time.
