An effective way to import Outlook Offline Storage Table file (.ost). files to Yahoo’s webmail service.
Secure Direct Migration — connect with Yahoo login credentials / App-specific password used when 2-step verification is on.. Softaken never saves Yahoo login details.
Key Features at One Glance
How to Access Yahoo Account with Third Party Apps
Available for Windows, Mac, and Linux. Pick your OS, then download or buy. Free demo imports 10 items of OST to Yahoo. No Outlook required.
Load offline OST mail, sign in with Yahoo App Password credentials, and upload directly to Yahoo Mail — no Outlook or Exchange required.
Import to Yahoo Mail
Follow the steps on the left. Use the arrows to switch screenshots — click a screenshot to enlarge.
step 1 of 3 · click image to enlarge
See Softaken Mail Importer add OST files, preview folders, sign in to Yahoo with App Password credentials, and upload emails — without Outlook or Exchange.
The program offers a direct platform by which users can easily import OST data to Yahoo account. By this, users can access OST files on laptop and mobile devices. Within 3 simple steps, the import task can be easily completed by novice users.
Benefit: Access OST file on cloud.
The hierarchy of folders remains intact during the conversion task. No disturbance to the original layout is made by the application. The utility takes care of crucial information and keeps it unmodified after the migration.
Benefit: Does not change folder hierarchies.
This software is easily workable on all editions of Windows. OST 2 Yahoo Import Tool does not show any support issues on all Windows platforms like Windows 11, 10, 8, 7, Vista, XP, and others without any trouble.
Benefit: For Windows OS.
The interface of the tool is simple and easy to use. It does not require any technical knowledge to operate it. Every professional and non-professional user can effortlessly manage this utility. Multiple OST files are simply imported by the tool.
Benefit: Amazing Interface.
The tool welcomes every large OST file to import into Yahoo account. It does not affect the working performance of this tool. Desired OST file transfer is performed by the tool. Users can save OST files by creating a new folder in Yahoo account.
Benefit: No size barrier.
The utility just uses Yahoo login credentials to connect with it and these login details are not saved by the software in its database. Users can transfer various OST files to multiple Yahoo accounts one by one. There is no such limit with the tool.
Benefit: Strong authentication.
Yahoo Mail typically needs an App Password (or third-party access setup) for IMAP with desktop tools—not your normal account password. Enter your Yahoo address and that App Password in the importer; login details are never stored. Guide: How to Access Yahoo Account with Third Party Apps.
Yes. The tool uploads OST data straight to Yahoo — no Outlook profile and no Exchange Server needed. Orphaned or disconnected OST files still migrate: pick the file and import to your Yahoo Mail account.
No. It is a standalone utility — Outlook install is not required and Exchange connectivity is not required either. You only need the OST file and Yahoo login credentials. Available for Windows, Mac, and Linux.
Yes. Folder hierarchy stays intact during migration, and attachments come along with the messages. Email content is not modified or dropped along the way.
Yes. Softaken Mail Importer (the engine behind this product) includes a From – To date filter when you only need a selective range instead of migrating every message in the OST.
Yes. You can add multiple OST files in one session and move them to Yahoo accounts one by one — including several Yahoo mailboxes if you need to.
There is no size barrier on the tool side — large OST files are fine. You do need a stable internet connection for local-to-cloud transfer and enough space in your Yahoo mailbox.
The free demo lets you preview the mailbox and import up to 10 items of OST to Yahoo Mail so you can test the workflow first. Full license unlocks unlimited import from $99. Available for Windows, Mac, and Linux.
100% Standalone — Microsoft Outlook and Exchange Server are not required.
Yahoo Mail import — App Password login supported. Softaken never saves Yahoo login details.
Folder hierarchy & attachments — import OST to Yahoo with folders intact and attachments included.
Demo — import 10 items of OST to Yahoo. Full license unlocks unlimited import.
Windows 11, 10, 8.1, 8, 7 · Mac · Linux
2024, 2021, 2019, 2016 · ANSI / Unicode
10 items
Full from $99
| Specification | Details |
|---|---|
| Product Name | Softaken OST to Yahoo Importer |
| Version | 1.0 |
| Input | Offline / orphaned Outlook OST |
| Output | Yahoo Mail |
| OS Supported | Windows 11, 10, 8.1, 8, 7 & Other · macOS · Linux |
| Outlook Supported | 2024, 2021, 2019, 2016, 2013, 2010, 2007, 2003 |
| Prerequisite | No Outlook / Exchange Server required |
| Authentication | Yahoo App Password / IMAP login |
| Processor | Any Pentium Class |
| Memory | 512 MB Minimum |
| Hard Disk | 100 MB of free space for software installation |
| Demo | 10 items |
| Delivery | Electronic · Via Email · Minutes: 15 |
| Language / Support | English · Emails, Chat & Skype |
| Platform | Windows · Mac · Linux |
System requirements for Softaken OST to Yahoo Importer on each supported OS.
Desktop installer
Apple desktop build
AppImage & Debian package
With the free demo, you can import 10 items of OST to Yahoo Mail. The full license unlocks unlimited import.
| Feature | Free demo | Full version |
|---|---|---|
| Import Outlook OST emails to Yahoo Mail | Available | Available |
| Preserve folder hierarchy & attachments | Available | Available |
| Standalone — no Outlook / Exchange required | Available | Available |
| Yahoo App Password / IMAP login | Available | Available |
| No size barrier for large OST files | Available | Available |
| Supported on Windows 11, 10, 8.1, 8, 7 & Other · Mac · Linux | Available | Available |
| Limitation | Import 10 items of OST to Yahoo | Unlimited |
| Price | FREE | $99 |
Customer feedback on Softaken OST to Yahoo Importer.
Australia
Moving OST files to Yahoo cloud becomes simple having this smart software which was not possible using any manual solutions. I am thankful to the development team for such a nice software.
Brazil
I had an orphaned OST file and I was using Yahoo application so I decided to transfer OST files to Yahoo Mail account so that I can access the database of these files. The transfer can be done in a few minutes using OST 2 Yahoo Converter Tool.
France
I am really satisfied with my decision that I chose this application to export OST emails to Yahoo account. It seamlessly exported attachments and other details in a secure way. Thanks to its team for this tool.
Load an offline or orphaned OST file, sign in with Yahoo App Password, and upload mail to Yahoo with folders and attachments intact.
Available for Windows, Mac, and Linux. Pick your OS, then download or buy. Free demo imports 10 items of OST to Yahoo. No Outlook required.
