How to Convert Outlook OST to Zimbra TGZ files?
Take assistance of fastest OST to Zimbra Converter and convert OST to Zimbra compatible TGZ files easily.
Download this Windows-based eSoftTools OST to Zimbra Converter software to convert OST to Zimbra TGZ files. Create new TGZ files holding all Outlook emails and access them in any version of Zimbra desktop client. Export all or selective mail folders from Outlook OST to TGZ files effectively. Get multiple smart features inside this software for accurate OST to Zimbra TGZ conversion.
Download eSoftTools OST to Zimbra Converter Software & install it on your windows machine.
Launch the software and click on "Select OST" button from menubar.

- Choose any one of these conversion modes: -
- Single OST file conversion- Search or select single OST file.
- Bulk OST file Conversion- Load multiple OST files in a single process.
After conversion mode selection, press Next button.

Add/Insert OST files with your chosen conversion method and press Start Scanning button.

Load Outlook mailbox from your OST file and preview all mailbox items from OST files directly in software's preview panel.
Check Outlook mailbox items from OST and choosen required folders for exporting.

Follow these below given steps to convert OST to Zimbra TGZ and Migrate OST to Cloud
Convert Outlook OST to TGZ (for Zimbra Desktop) or Outlook PST files.
Step-5) Make selection of needed OST mailbox folders and press Save OST button from top menubar.
Choose an export option from avaialble options: -
- Export to TGZ : - Move Outlook mail folders from OST to TGZ files for Zimbra Desktop.
- Export to PST: - Transfer Outlook Mailbox from OST to Outlook PST file.
(Use split PST option and break large PST in smaller parts.) - Single PST for All Mailboxes: - Save Outlook mailbox from different OST files in one PST file.

Use additional settings and options while performing OST to TGZ conversion: -
- Mail filter => Select dates of emails those you want to extract from OST files specifically.
- Saving Location => Choose a path from your local drive to store the resulting files while OST Conversion.
Lastly, hit the Convert button and start OST Conversion to Zimbra TGZ or PST files.

Export OST to Gmail, Office365, Yahoo Mail, and IMAP Account
Click on "Import into Cloud" button from top menu and select cloud importing option.
- Import OST to Office365.
- Import OST to Gmail / G-suite.
- Import OST to Yahoo Mail.
- Import OST to IMAP Account.
Simple Steps to Export OST to Office365 account mailbox
Select Import OST to Office365 cloud import option and input your Office365 account's email address in the new opened window.
Select any one option: -
- "Export to Primary mailbox"
- "Input New Folder name for migration"
- "Export in -> Inplace Archive Folder"
Use "Mail filter" to extract emails of selective date range from OST files and choose log file saving location.

After applying all necessory settings, press Convert button and begin OST to Office365 Migration.

Export/Migrate OST to Gmail or G-Suite (bussiness)
Select Import OST to Gmail/G-Suite option from cloud import options.
Input Gmail or Google workspace account's email address and Google third-party app password
After adding these account details, click on Authenticate Login button.

Choose an Import option
- Import folder name for migration
- Export in Primary Mailbox
Select Mail Filter option and choose date of emails that you want to export from OST file.
Select Create Log File option and choose a location for saving log file.

Lastly, hit the Convert button and start transferring Outlook mailbox items from OST to Gmail or Google WorkSpace account.

Migrate Outlook OST to Yahoo Mail Account
Choose the Import OST to Yahoo from cloud importing options list.
Enter email address of your Yahoo account and Yahoo third-party app password
Click on Authenticate Login button and connect to Yahoo Mail.

Choose any one of these Import options -
- Import folder name for migration
- Export in Primary Mailbox
Use Mail Filter to specify dates of emails for exporting them from OST specifically.
Choose a place for saving Log File.

Hit on Convert and begin the OST to Yahoo Mail migration.

Import Outlook OST to IMAP Mail Server account
Click on Import to Cloud button and choose Import OST to IMAP option.
In the next opened screen, enter IMAP account email address, password, host name, and Port.

Apply other required settings : -
- Mail Filtering: - Select a date range of emails those you want to export from OST file.
- Input Folder name for migration: - Input a folder to mail server for storing imported OST file data.
- Create Log File: - Choose a place in your computer to save log file.
Lastly, hit on Convert and start OST to IMAP email migrtaion.
