Kernel Office 365 Backup Tool is an efficient tool to take a secure backup of Office 365/Exchange mailboxes in the form of PST files. The tool is quite light-weighted and easy to use and stores the backed-up data at the user-defined location.

How to use Kernel Office 365 Backup Tool

Kernel Office 365 Backup Tool helps the user to securely backup the Office 365/Exchange mailboxes to PST files. It is useful for both users and administrators as it works perfectly well for single as well as multiple mailbox backups.

Backup single Office 365/Exchange mailbox to PST

Any user can backup a single office 365/Exchange mailbox to PST without any administrative privileges.

Step1:

To add a source (Exchange Server/Office 365) for backup, click the Add button. There are two login methods – Basic Authentication and Modern Authentication. Choose any and click OK.

Launch the Kernel Office 365 Backup & Restore

Step2:

In the Office 365/Exchange Login page, provide the source credentials. Select the required option from the three:

  • Office 365 - provide User email & Password.
  • Hosted Exchange Server - provide the login details with Proxy Server name.
  • On-premises Exchange Server - User ID & Password

Select Single mailbox/Office 365 Group and click the Add button.

Click the Add button

Note – If the email address is different from the Mailbox Login ID (UPN) in the Active Directory, then you need to enter email Address too.
Note: Here, we are adding Office 365 as the source.

Note: In the Modern Authentication method, the Office 365/Exchange Login page shows different fields to input.

  • Tenant ID – Tenant ID from the Overview section of Active Directory.
  • Client ID – Client ID or Application ID is present in the Overview section of Active Directory.
  • Client Secret Key – Use the Client Secret value from the Clients & secrets section

Click Add after inputting the details.

Click the Add button

Step3:

Select the account and click the Set filter and Migrate button.

Set filter and Migrate

Step4:

From the drop-down box, select the data you want to back up - Mailbox, Archive Mailbox, or Public Folder - and click Migrate.

Select Data to Take Backup

Step5:

In the Filter Selection window, choose the filtering options as required:

  • Review and search Mailbox Folders to Migrate - Select the folders to migrate.
  • Date Filter - Provide a date range to filter items.
  • Item Type Filter - Select the item types that are to be migrated.
  • Exclude Deleted folder - Select to exclude Deleted item folder from migration
  • Exclude empty folders - Exclude empty folders from the migration.
  • Select if you want to save…- Provide a folder name (to save the data with hierarchy inside a mailbox folder)
  • Set operation timeout… - Select an upper time limit for migration (the migration will be rejected if it exceeds this time limit).
  • Skip previously migrated items – Check the box to skip the already exported data and save only additional data.

Finally click I am OK, Start Migration.

Start Migration

Step6:

Make selection of desired file format from the displayed list of multiple file formats and click OK.

Select the Location to Migrate

Step7:

Browse the location for the backup.

Save Report to CSV

Step8:

The tool starts to migrate. As soon as the migration is completed, a message window informs that the process is complete. Click OK.

Save Report to CSV

Backup multiple Office 365/Exchange mailboxes to PST

To take the backup of multiple Office 365/Exchange mailboxes, you need to have an Exchange/Office 365 account with administrative privileges.

Step1:

Launch the application and click on Add button

Launch the Kernel Office 365 Backup & Click the Backup button

Note: You can use a CSV file provide the details of multiple mailboxes (use the Import from CSV button). The format of the CSV file can be downloaded by clicking the Download Sample CSV File button.
Step2:

In the Office 365/Exchange Login page, provide the source credentials. Select the required option from the three:

  • Office 365 - provide User email & Password.
  • Hosted Exchange Server - provide the login details with Proxy Server name.
  • On-premises Exchange Server - User ID & Password

Click the second option List All Mailboxes using above credentials, then click Get User Mailbox(es). Select the required mailboxes and click the Add button.

Click the add button

Note: In the Modern Authentication method, the Office 365/Exchange Login page shows different fields to input.
  • Tenant ID – Tenant ID from the Overview section of Active Directory.
  • Client ID – Client ID or Application ID is present in the Overview section of Active Directory.
  • Client Secret Key – Use the Client Secret value from the Clients & secrets section.

Choose the second option to list all mailboxes using the above credentials. Click Get User Mailboxes. Use the checkbox to select important mailboxes, then click Add.

Click the add button

Step3:

Multiple mailboxes are added; click Set Filter and Migrate.

Select Desired Folder

Step4:

Select the data (Mailbox/Archive mailbox/public folder) to be backed up and click Migrate.

Select Desired Folder

Step5:

In the Filter Selection window, choose the filtering options as required:

  • Review and search Mailbox Folders to Migrate - Select the folders to migrate.
  • Date Filter - Provide a date range to filter items.
  • Item Type Filter - Select the item types that are to be migrated.
  • Exclude Deleted folder - Select to exclude Deleted item folder from migration
  • Exclude empty folders - Exclude empty folders from the migration.
  • Select if you want to save… - Provide a folder name (to save the data with hierarchy inside a mailbox folder)
  • Set operation timeout… - Select an upper time limit for migration (the migration will be rejected if it exceeds this time limit).
  • Skip previously migrated items – Check the box to skip the already exported data and save only additional data.

Finally click I am OK, Start Migration.

Start Migration

Step6:

Choose the desired file format from the given list and click OK.

Choose the desired file format from the given list

Step7:

Provide a destination where you want to save the backup PST file.

Provide a destination

Step8:

The backup process starts. As soon as the backup process is completed, the tool provides information that process is completed. Click OK to finalize the process.

Save Report to CSV

Backup data gets saved different PST files for each Office 365 mailbox.

Note: You can save a CSV report which has complete information about the total mailboxes backup.
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