How to Move Bulk MBOX Files to Yandex Webmail?

  Kumar Raj
Written By Kumar Raj
Anuraag Singh
Approved By Anuraag Singh
Modified On August 13th, 2025
Reading Time 5 Minutes Reading

Switching to Yandex.Mail, and you want to access your MBOX file containing old emails. This article will help you by sharing ways to import MBOX to Yandex. I will also explain the issues when uploading your MBOX file to Yandex Mail.

Overview of MBOX File and Yandex

Opening the MBOX file, because several email programs support this file format. Popular programs like Thunderbird and Apple Mail use the MBOX format to import or export your file. But if you want to move the data to Yandex Mail. Then, many of you are having problems moving your files.

Yandex.Mail is a free email service and is very popular in Russia. Because of its vast storage space, advanced spam protection, and integration with other Yandex services. Several professionals and businesses prefer this for email management and try to access mailbox files.

How to Import MBOX to Yandex Webmail Manually?

Yandex Mail does not support MBOX files, so you cannot move the files. You need the help of a third-party email application like Thunderbird. In this, I am going to use Thunderbird; you can use any program that supports MBOX files. Accessing the MBOX file to Thunderbird is easy; you just need to install the Import/Export Tools NG add-on.

  1. First, configure your Yandex email account in Thunderbird by going through the Account Settings.
  2. Click on the Account Action option and then the Add a Mail Account button.
  3. Provide the details of your Yandex account, and choose IMAP. The program automatically configures your account.
  4. Now, select your Yandex account and Right-click on it.
  5. Select the Import/Export Tools NG, then the Add MBOX file option.
  6. Click on either individual files or import all MBOX files from directories.
  7. Browse the location of your files and import the files into the program.
  8. Now, move your MBOX emails to the Yandex inbox one by one.

From these steps, you can easily get your MBOX files from Yandex.Mail account. It is simple to follow, but before following, you have to pay attention to certain points.

Expert Tips for Uploading MBOX Files to Yandex

Before you go through the process of importing the MBOX file, there are some points that you must consider before following the above process.

  • Make sure that your internet connection is strong, because if there are any disturbances during the syncing process. This could lead to issues in configuring your account.
  • Check the size of the MBOX file, also scan the file if there is any malware or spam emails.
  • It is important to enable IMAP in Yandex Mail. Also, you should know about the Yandex server settings.

If you didn’t follow these tips, you can face many issues, especially in Yandex Mail. Below are some of the common issues that you may face.

Problems in Yandex Mail After Importing MBOX File

Whenever a user tries to import a file in Yandes, their main concern is about the data in the file. Some of you don’t know that moving a new file to an already existing mailbox can cause you problems like.

  • There are some cases when you import the files, you may lose some email formatting.
  • Large attachments or unsupported formats can lead you a corruption problem in Yandex Mail.
  • Data duplication can also be there if the MBOX file contains similar emails like Yandex mailbox.
  • If the large MBOX files do not import properly, then you may lose your data.
  • The incorrect configuration of Yandex Mail in Thunderbird makes it difficult for you to import the MBOX file.
  • An oversized Yandex mailbox is also an issue in importing the file.

So, you can see that there are several Yandex email account issues that you may encounter. So, to avoid that, use the software below.

Backup Yandex Mailbox Before Import Process

Most experts advise you to first take a backup of your Yandex email account. Before you start moving your MBOX files. Therefore, to securely download your data, use the SysTools Yandex Mail Backup Tool. It is a professional tool that you can use to save your Yandex emails to local storage. The software provides you with several options like PST, PDF, EML, etc. so try this tool to create a backup of your Yandex mailbox before you follow the methods to import the file.

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In Conclusion

In this article, I have explained how you can import MBOX to Yandex Mail. Here, I mentioned a manual way that can easily move your MBOX file into Yandex using Thunderbird. But I also explained the tips to follow before migrating your data. Additionally, I also discuss the issues while importing the file and a solution. So, in this article, you will get all the information related to importing the file.

Frequently Asked Questions

Q. Does Yandex Mail support MBOX files?
Ans. No, Yandex Mail does not support MBOX files. If you want to open the MBOX file, you have to use a Thunderbird program or any MBOX-supported email program.

Q. Which email client is great for importing an MBOX file to Yandex Mail?
Ans. You can use any email programs like Thunderbird, Apple Mail, Eudora, to Yandex. But, they must support an IMAP server.

Q. How can I get an email backup of my Yandex account?
Ans. To backup your Yandex email account, you can use the professional software mentioned above.

Q. What are the Server Settings of a Yandex Mail Account?
Ans. For IMAP settings

  • Incoming Mail Server: imap.yandex.com
  • Port: 993
  • Security: SSL/TLS

POP3 Settings

  • Incoming Mail Server: pop.yandex.com
  • Port: 995
  • Security SSL/TLS

SMTP settings

  • Outgoing Mail Server: smtp.yandex.com
  • Port: 465 (SSL) or 587 (STARTTLS)
  • Security SSL/TLS or STARTTLS
  Kumar Raj

By Kumar Raj

He is an ardent tech enthusiast and has a specialization in simplifying complex tech topics. With a knack for staying ahead of the curve, he provides readers with up-to-date insights into the ever-evolving tech world. When he is not writing, he enjoys exploring new gadgets and is actively engaged in tech communities.